November 04, 2026
Three-dimensional (3D) microstructure reconstruction is essential for understanding processing-microstructure-property relationships in solid oxide cell (SOC) electrodes. …
October 27, 2026
A frequency-domain thermoreflectance (FDTR)-based technique is presented to measure the effective thermal properties of a material stack whose surface is patterned …
October 19, 2026
Extracellular vesicles (EVs) hold immense therapeutic potential, yet their clinical translation is hindered by nonspecific cellular uptake and the complexity and cost of surface engineering…
October 16, 2026
Spin waves carry their propagation direction in the handedness of their circularly polarized stray field, a property inaccessible to scalar magnetometers. In the Damon-…
October 15, 2026
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The authors would like to …
October 13, 2026
The development of advanced hybrid materials such as polymer-grafted nanoparticles (aka “brush” or “hairy” particles) hinges on the ability to accurately predict suitable …
September 30, 2026
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The authors thank Daniel DeLellis …
September 28, 2026
The concurrence of “single crystal-like” uniformity and isotropy of structure and properties is expected to endow disordered hyperuniform (DH) materials with novel …
September 25, 2026
Ferroelectric switching in heterostructures couples composition, layer topology, temperature, and interfacial boundary conditions. ReaxFF molecular dynamics isolates …
September 24, 2026
This work seeks to quantify the effect of composition variation within ASTM SpecificationF2924 on microstructure, texture, and tensile properties of Ti-6Al-4V printed with …
September 24, 2026
Temperature is a major factor influencing battery cycle life, with elevated temperatures generally accelerating capacity degradation. Here, we employed poly(3,4-…
September 20, 2026
Controlling the titanium concentration in weld deposits plays an important role in establishing weld metal microstructure. This work tested the effect of the reaction between …
September 18, 2026
Multilayered magnetic recording media using a pure Pt interlayer leads to the formation of an unwanted FePt 3 phase that degrades the magnetic properties of the …
September 01, 2026
Ionomer strongly influences the performance of proton exchange membrane fuel cells (PEMFCs), affecting catalyst activity and reactant transport within the electrodes. …
September 01, 2026
Additive manufacturing (AM) of tungsten offers a route to produce complex components for high-temperature applications; however, tungsten's high thermal conductivity, …
September 01, 2026
The modification of nanoparticles with polymer chains has emerged as a versatile platform to enable hybrid particle building blocks that can be assembled into functional …
August 19, 2026
This work examined biophysical properties of a matched pair of antimicrobial peptides (AMPs), RT9 (VRRW VRRV WRWV RRVW RR) and KT9 (VKKW VKKV WKWV KKVW KK), two 18-…
August 19, 2026
Artificial solid electrolyte interfaces (aSEIs) based on organic–inorganic hybrids offer a promising strategy to stabilize lithium–metal anodes by combining mechanical …
August 12, 2026
… The authors acknowledge the use 333 of the Materials Characterization Facility at CMU supported by Grant MCF-677785. The authors gratefully acknowledge the …
August 05, 2026
Widespread exposure and bioaccumulation of toxic heavy metals have increased the incidence of metal poisoning, particularly in children. Although chelation therapy can …
August 04, 2026
In this study, we investigate the effect of Mg incorporation on the relative phase stability of the four primary Ga 2 O 3 polymorphs using density functional theory (DFT) …
August 01, 2026
Poly(methyl methacrylate) (PMMA) remains a clinical standard in orthopedic procedures due to its reliable primary fixation. However, its inherent lack of bioactivity and …
July 28, 2026
… Nanotechnology Laboratory at Carnegie Mellon University supported by grant BNL-78657879, and the Materials Characterization Facility supported by grant MCF-677785…
July 27, 2026
Jingyu Tang ORCID logo https://orcid. org/0000-0003-2512-7000 a), Po-Sen Tseng ORCID logo https://orcid. org/0000-0002-9892-8119, Kunyao Jiang ORCID logo https://…
July 25, 2026
Batteries have the potential to facilitate broader global access to reliable and affordable clean energy. Therefore, battery research focused on reducing the lifetime costs, manufacturing …
July 16, 2026
Here, we report microwave sintering in a hexagonal susceptor enclosure produces ∼94% dense Li 7 La 3 Zr 2 O 12 electrolytes in <30 min, reducing processing time from ∼6 h for …
July 07, 2026
Challenges such as material availability, supply chain security, high costs, short cycle life, limited storage duration, and thermal safety issues have become more pronounced for current …
July 01, 2026
Non-metallic inclusions play a major role in defining the properties of steel and their examination has been greatly aided by automated scanning electron microscopes (SEM) coupled
July 01, 2026
Grain size in polycrystalline structures has been a ruling factor in many material properties, including mechanical hardness [1] and thermal conductivity [2]. Given the effect …
July 01, 2026
Since the discovery of ferroelectricity in wurtzite-based thin films in 2019 [1], these materials have drawn significant attention due to their strong ferroelectric properties and …
July 01, 2026
Modern computing platforms increasingly face fundamental bottlenecks arising from the physical separation of memory and logic units, commonly referred to as the …
July 01, 2026
Digital printing of porous conductive inks is essential for circuit applications that require the printed traces to have a high surface area. Here, we introduce a method for …
June 29, 2026
Magnetite concentrates from different parts of the Mesabi Range, exhibiting varying tendencies to encapsulate, were reduced using thermogravimetric analysis (TGA) and …
June 29, 2026
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. A portion of this research was sponsored by …
June 17, 2026
Iron phthalocyanine (FePc) is a promising alternative to platinum-based catalysts for sustainable energy devices; however, the plane-symmetry of Fe-N 4 sites, random …
June 01, 2026
Through systematic optimization of direct current (DC) magnetron sputtering parameters in a cleanroom environment, this study identifies an optimal processing window — intermediate
June 01, 2026
, Carnegie Mellon University, under Grant BNL-78657879; and in part by Carnegie Mellon University through the use of the materials characterization facility under Grant MCF-677785.
June 01, 2026
Integration of nano-electromechanical systems (NEMS) actuators into multi-physics platforms, such as with photonic integrated circuits (PICs), can provide unique advantages in power
June 01, 2026
Proton exchange membrane water electrolyzers (PEMWEs) offer a promising pathway for hydrogen production with low carbon emissions, but remain economically …
June 01, 2026
Σ3 twin boundaries are among the most common and influential grain boundary types in low to medium stacking fault, face-centered cubic (FCC) materials, yet the …
June 01, 2026
Radiation hardness is a critical requirement for gallium nitride (GaN)-based devices operating in space and radiation intensive environments. We investigate irradiation …
May 27, 2026
… at Carnegie Mellon University (BNL-78657879) for the fabrication of the devices and the Material Characterization Facility at Carnegie Mellon University (MCF-677785) for …
May 27, 2026
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The authors would like to acknowledge the …
May 13, 2026
Hafnium oxide-based ferroelectrics have garnered increased attention due to their high dielectric constant and potential use as non-volatile memory elements for CMOS integration [1-3]…
May 12, 2026
Volumetric muscle loss (VML) injuries overwhelm the inherent regenerative capacity of skeletal muscle, causing persistent functional deficits with no routinely effective therapies.
May 07, 2026
Developments in third-generation advanced high-strength steels (AHSS) have produced stronger and more formable steels for the automotive industry by controlling …
May 04, 2026
Soft compliant silicone polymers such as Polydimethylsiloxane (PDMS) are widely used in soft robotics, biomedical devices, and microfluidic systems. PDMS, however, …
April 24, 2026
Achieving a uniform distribution of oxide particles is a critical aspect of additive manufacturing of oxide dispersion-strengthened (ODS) alloys. In this study, we …
April 20, 2026
We introduce a novel electro-optomechanic neural sensor for realizing ultra-compact neural recording probes that can detect and relay electrophysiology signals from …
April 13, 2026
Wafer bonding is a common technique used within the semiconductor community. We provide a first demonstration of this technique as a method to potentially realize multilayered …
April 06, 2026
A material system for performing layer-spread experiments on brush particle bilayers is presented and used to determine the diffusion constant of brush particles in the melt state.
April 05, 2026
The kinetics of the $\kappa$ to $\beta$-Ga$_2$O$_3$ phase transformation were investigated in five batches of nominally phase-pure $\kappa$-Ga2O3 thin films heteroepitaxially
March 01, 2026
Cell therapy shows promise for sustained delivery of therapeutics, allowing a single dose to replace repeated injections and lasting many months to years. As cells are typically …
March 01, 2026
… The use of the Materials Characterization Facility at Carnegie Mellon University by grant MCF-677785 is also acknowledged. v Table of Contents Abstract ........................................................…
February 24, 2026
Complete and accurate quantification of additively manufactured microstructures, along with all their relevant features, is essential for reliable model development, calibration and
2026
Gallium nitride (GaN) has recently emerged as a preferred choice of material for high-power, high-frequency applications, including high electron mobility transistors (HEMTs), which are …
January 25, 2026
The authors also acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by the grant MCF-677785. The authors also acknowledge the
January 21, 2026
In this study, we investigate the effect of Mg incorporation on the relative phase stability of the four primary Ga$_2$O$_3$ polymorphs using density functional theory (DFT) calculations, …
January 20, 2026
Next‐generation microelectronic devices and energy systems will require fabrication techniques that enable the rapid spatial arrangement of 1D and 2D functional nanomaterials. …
January 19, 2026
I would also like to thank the Materials Characterization Facility at Carnegie Mellon University under grant # MCF-677785 for use of facilities for the on-site imaging work.
January 08, 2026
Thermodynamics-based models predict the structure of polymer-grafted nanoparticles (PGNs) as well as their assembly behavior based on geometric parameters such as particle size, …
January 08, 2026
Additive Manufacturing (AM) holds the potential to fundamentally alter the manufacturing space, offering opportunities for on-demand production and distributed manufacturing. Laser …
January 04, 2026
Dictionary indexing (DI) for Electron Backscatter Diffraction (EBSD) has conventionally traded computational speed for superior robustness to pattern noise when compared to traditional …
January 03, 2026
Animals exploit the deformability of soft structures to move efficiently in complex natural environments. These soft structures are inherently compliant and enable large strains in
January 01, 2026
Abnormal grain growth has been previously found to increase with the inclusion of large pores (~60 µm in diameter) in 80 ppm calcia doped alumina. However, the two-dimensional …
2025
With the invention of laser powder bed fusion additive manufacturing, the manufacturing industry has been revolutionized. Novel structures that were impossible to make in the past are …
2025
… I acknowledge the use of the Materials Characterization Facility (MCF) at Carnegie Mel- lon University, supported by grant MCF-677785. The author acknowledges funding from v Army …
2025
Silicon carbide (SiC) has great potential for optomechanical applications due to its outstanding optical and mechanical properties. However, challenges associated with SiC …
December 22, 2025
There is a growing interest in high oxygen permeability ionomers (HOPI) for better-performing proton exchange membrane fuel cell (PEMFC) catalyst layers. In this study, we used small-…
December 12, 2025
An optomechanical frequency comb arises from the nonlinear interaction between optical and mechanical modes in a cavity, with its repetition rate set by the mechanical frequency. …
December 08, 2025
This study examines the microstructure, cracking defects, and mechanical properties of pure tungsten (W) and W alloys fabricated by additive manufacturing (AM) methods such as
December 01, 2025
Solute segregation to grain boundaries in polycrystalline metals and ceramics is a well-known phenomenon that reduces the total energy of the material. In this letter, the segregation of …
December 01, 2025
To operate proton exchange membrane water electrolyzers (PEMWEs) at high pressure differentials for electrochemical hydrogen compression, gas recombination catalysts (GRCs) are …
November 28, 2025
The high melting temperature of tungsten (W) makes it an attractive candidate for energy generation applications; however, its use is limited by its poor ductility at low temperatures. This …
November 28, 2025
… The authors acknowledge the use of Materials Characterization Facility at Carnegie Mellon University supported by in part under grant MCF-677785. The authors acknowledge the …
November 24, 2025
One of the key developments needed for proton exchange membrane water electrolyzers (PEMWEs) is the reduction of iridium (Ir) loadings required to sustain high current density
November 24, 2025
I would like to acknowl- edge the use of the computing workstation at Materials Characterization Facility at CMU supported by grant MCF-677785, as well as the Joule supercomputer at
November 01, 2025
Chemical degradation of ionomer in proton exchange membrane fuel cell (PEMFC) electrodes can impact durability and cost. However, it is less well understood than membrane …
October 28, 2025
The development of safe and high-performance electrolytes is essential to realize the full potential of lithium metal batteries (LMBs) for next-generation energy storage. In this study, we …
October 09, 2025
Determining suitable dopants with optimized doping concentration is critical to design efficient water splitting photocatalysts. However, there is currently a lack of fundamental …
October 06, 2025
Due to their impressive energy density, lithium-metal batteries have great potential to replace the widely used lithium-ion batteries. However, some challenges, like dendrite growth and …
October 03, 2025
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by in part under grant MCF-677785. Scott Kram and Ian Maclachlan are …
October 03, 2025
The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by in part under grant MCF-677785. Scott Kram and Ian Maclachlan are
October 01, 2025
This study reports on the growth and characterization of three different phases – α, β, and ε – of Ga 2 O 3 epitaxial layers grown on (001) sapphire substrates at 650 C. The stable β-
October 01, 2025
This work demonstrates an Overmoded Bulk Acoustic Resonator (OBAR) design that incorporates 35% Scandium doped Aluminum Nitride (Sc 0.35 Al 0.65 N) as the piezoelectric layer.
September 24, 2025
Hairy nanoparticles (HNPs) provide excellent protection against dendrite formation when applied as an artificial solid electrolyte interface (aSEI) in lithium-metal batteries. ASEIs can be …
September 21, 2025
Augmenting human sensing with wearable electronics has the potential to revolutionize how to interact with the environment, enabling “superhuman” abilities to incorporate new data …
September 15, 2025
The third-generation advanced high-strength steels exhibit increased strength and formability due to their chemical composition and precisely controlled thermomechanical processing. …
September 04, 2025
A phononic frequency comb consists of equally spaced components in the mechanical frequency domain and holds promise for numerous applications. Yet, prior demonstrations have …
September 03, 2025
Accurate identification of local phases in nanocrystalline materials is essential for understanding their functional properties, but it remains a significant challenge for polymorphic …
September 01, 2025
Recently hexagonal-BN (h-BN)/L $1_{0}$ -FePt granular media has been proposed as an ideal candidate for next generation heat assisted magnetic recording (HAMR) media. The …
August 25, 2025
Lithium niobate (LN) is a promising ferroelectric material used for emerging memories and radio frequency (RF) micromechanical resonators. The ferroelectric behavior of the bulk …
August 20, 2025
This work presents a soft, flexible, and skin-adhering electrode for a wearable bio-signal acquisition device. This dry micropatterned electrode is made with an ink composed of styrene-…
August 18, 2025
Two types of nanoscale structures with amorphous GeSe x functional layers were fabricated to assess the elemental segregation in devices stressed by the application of an electric …
August 08, 2025
Ferroelectric domain nucleation and growth in epitaxial (Al, B, Sc)N films grown on n‐GaN substrates are explored using a combination of ferroelectric property measurements and …
August 01, 2025
The surface quality of parts has always been one of the key factors in additive manufacturing, and there have been numerous studies exploring how printing parameters influence the …
July 31, 2025
The author acknowledges use of the Materials Characterization Facility at Carnegie Mellon University supported by in part under grant MCF-677785. The author also ac- knowledges
July 25, 2025
Stimulated Raman scattering in a Kerr microresonator is generally considered a competing nonlinear process that hinders the formation of Kerr soliton microcombs. In this work, we …
July 16, 2025
Incorporating ionic species into the backbone of liquid crystalline elastomers offers a template for tailoring thermomechanical and electromechanical properties. Thermotropic ionene …
July 16, 2025
The solubility of vanadium in perovskite-structured BaTiO 3 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{…
July 16, 2025
Incorporating ionic groups within liquid crystalline matrices expands the palette of functionalities beyond traditional thermomechanical responses. This study explored a …
July 13, 2025
In-memory computing (IMC) has emerged as an alternative to the Von Neumann architecture, enabling computation directly in memory. Emerging non-volatile memories (eNVMs) are …
July 12, 2025
The blending of glassy copolymer-brush modified colloids with a viscoelastic linear copolymer featuring intrinsic self-healing enabled disordered hyperuniform hybrid materials that …
July 11, 2025
MXene is a class of compounds known for its superior electrical properties and versatile surface chemistries. However, its susceptibility to oxidation-induced degradation under ambient …
July 01, 2025
Abnormal grain growth (AGG), where a small fraction of grains grow faster than others, is critical to predict because it can significantly impact material properties. However, the …
July 01, 2025
Cemented carbides such as cemented tungsten carbide (WC) are known for their use in resilient wear-resistant applications where hardness and thermal stability are imperative. They …
July 01, 2025
Highly alloyed (Al, Gd) N is of potential interest in a variety of applications, including neutron detection and in devices such as non-volatile memory. Gd has been shown to have very low …
July 01, 2025
This dataset reports the characterization and data processing methodology of 45 individual AISI 316L single melt tracks, fabricated by powder blown laser beam directed energy …
July 01, 2025
This dataset reports the characterization and data processing methodology of 45 individual AISI 316L single melt tracks, fabricated by powder blown laser beam directed energy
June 23, 2025
Articular cartilage defects are common, and the progressive deterioration of cartilage frequently results in the onset of osteoarthritis. However, the intrinsic regenerative capacity of …
June 18, 2025
Recent progress in the 4H-silicon-carbide-on-insulator (4H-SiCOI) platform has resulted in the demonstration of essential building blocks such as low-loss waveguides and …
June 09, 2025
The thermal conductivities of (100) γ-Ga 2 O 3 films deposited on (100) MgAl 2 O 4 substrates with various thicknesses were measured using frequency-domain thermoreflectance. The …
June 01, 2025
Rapid electrochemical diagnostics, like DC pulse sequences or electrochemical impedance spectroscopy, are known to be useful for capacity prediction. However, it is unclear how …
June 01, 2025
An etch parameter study is conducted with the objective of achieving high anisotropy for tantalum (Ta) thin films of more than 1 μm in thickness. The gases explored are Argon (Ar), …
June 01, 2025
An etch parameter study is conducted with the objective of achieving high anisotropy for tantalum thin films of more than 1 μm in thickness. The gases explored are Ar, CF4 and O2. The …
May 31, 2025
Parts fabricated by laser powder bed fusion (LPBF) contain oxide inclusions, which can be detrimental to fatigue resistance. Under typical LPBF conditions, the atmosphere contains …
May 28, 2025
Nitric oxide (NO) released endogenously by induced NO synthase (iNOS) in macrophages is a key regulatory biomarker for wound inflammation. Detecting NO directly on the wound
May 22, 2025
… MCF-677785. RW and JL also acknowledge the support of the Tan Endowed Graduate Fellowship and the Benjamin Garver Lamme/Westinghouse Graduate Fellowship from CMU, …
May 08, 2025
Manufacturing Center, CMU’s Manufacturing Futures Initiative, the John Crane Company, and the Materials Characterization Facility at Carnegie Mellon University (grant #MCF-677785)
May 05, 2025
Third-generation advanced high-strength steels have greater strength and formability compared to past generations. This study focuses on the as-cast microstructure and mechanical …
May 01, 2025
Hot cracking remains a critical challenge in additive manufacturing (AM), particularly during the processing of commercial alloys. Despite extensive efforts to understand, quantify, and …
April 30, 2025
Organic nanoparticles provide exceptional intraparticle tailorability, enabling the incorporation of functional molecules for diverse applications. In this study, we present the synthesis
April 04, 2025
The hydrogen produced by Al‐doped SrTiO 3 /TiO 2 core‒shell catalysts with a range of Al‐doped SrTiO 3 cores and the same TiO 2 shell are compared. The study included SrTiO 3 …
April 01, 2025
Aluminum nitride (AlN) is a promising dielectric heatsinking material candidate for heat-assisted magnetic recording (HAMR) light delivery systems, offering both low optical loss and …
April 01, 2025
Heat-assisted magnetic recording (HAMR) requires a high thermal gradient in the recording media to suppress jitter noises. The FePt-(h-BN) granular film has been proposed as a …
March 26, 2025
Combining droplets of liquid metal (LM) with nanomaterials often introduces synergistic thermal or electrical properties that are not found in the constituent materials alone. However, in …
March 13, 2025
Ferroelastic BiVO 4 has charged surface domains, even though its crystal structure is non‐polar. These charged domains can be detected by piezo‐force microscopy and lead to …
March 09, 2025
Third-generation advanced high-strength steels (AHSS) exhibit increased strength and formability due to their chemical composition and precisely controlled thermomechanical …
March 07, 2025
Brush particles, hybrid materials consisting of polymer chains tethered to particle surfaces, offer tunable properties that make them promising candidates for advanced functional …
March 01, 2025
We have demonstrated, for the first time to our knowledge, self-injection locking of a distributed feedback diode laser to a multimode 4H-silicon carbide (4H-SiC) microring resonator, …
February 26, 2025
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. Peptide synthesis, characterization, modification …
February 13, 2025
We report on ferroelectric behavior in wurtzite Z n 1 − x M g x O thin films across the accessible Mg concentration range. We outline a sputter deposition process for Z n 1 − x M g x O thin …
February 07, 2025
Manufacturing of ceramics is challenging due to their low toughness and high hardness. Additive Manufacturing (AM) has been explored to create complex ceramic structures, but …
February 01, 2025
Implantable biomedical devices often contain rigid components such as microneedles, Si chips, and sensors, that can frequently come in physical contact with soft biological tissue. …
January 23, 2025
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. A portion of this research was sponsored by the …
January 20, 2025
Grain size distribution is a critical factor in determining materials’ physical and mechanical properties, including thermal conductivity, hardness, and creep behavior. Understanding the …
January 19, 2025
This paper reports a novel nanoscale opto-mechanical modulator and paradigm for extracting the opto-mechanical sensitivity and effect of optical forces independently of the electro-…
January 17, 2025
… MCF-677785. Some of the work was performed in part of the Colorado School of Mines’ Shared Instrumentation Facility (RRID:SCR_022053). The views expressed in the article do not …
January 14, 2025
Steel must be deoxidized during refining to avoid the formation of gas porosity during solidification, and many alloys. In the case of Si-Mn killed steels, Si and Mn are added to form low
January 08, 2025
Proximity ferroelectricity is an interface-associated phenomenon in electric-field-driven polarization reversal in a non-ferroelectric polar material induced by one or more adjacent …
January 06, 2025
… The author acknowledges use of the Materials Characterization Facility at Carnegie Mellon Uni- versity supported by grant MCF-677785. The water atomized powder project was …
January 01, 2025
Traditional methods for synthesizing two-dimensional Ti 3 C 2 T x MXenes such as hydrofluoric acid (HF) or LiF/HCl based etching can be time-consuming, complex, and often result in …
2024
This parameter development study for the electron beam powder bed fusion process was conducted by graduate students as part of a 4-week final project in a semester-long additive …
2024
I acknowledge the use of the materials characterization facility at Carnegie Mellon University supported by grant MCF-677785 for SEM and PFIB. Work performed in the University of
2024
) Center of Excellence, Air Force agreement number FA8650-19-2-5209; and by the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785,
2024
Ga₂O₃ is an emerging ultra-wide-bandgap semiconductor material for applications in high-power electronic devices. It is characterized by four commonly accepted polymorphs: α (
December 19, 2024
Electrically conductive hydrogels are a promising class of materials for soft electronics and robotics that mimic the mechanics of natural biological tissue. However, these materials are …
November 22, 2024
As the demand for big data applications and faster computation increases, there is an ever-growing need for memory devices with high performance, low cost, and large storage density.
November 07, 2024
… of Bertucci Nanotechnology Laboratory at Carnegie Mellon University supported by grant BNL-78657879 and the Materials Characterization Facility supported by grant MCF-677785. J. …
November 05, 2024
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785. …
October 15, 2024
Layered double hydroxide (LDH) nanoparticles enable foliar delivery of genetic material, herbicides, and nutrients to promote plant growth and yield. Understanding the foliar uptake …
October 06, 2024
We conduct preliminary hot switching experiments in ultra-high purity nitrogen atmosphere on MEMS relays over two orders of magnitude supply voltage, $V_{s}$ , from 0.1 V to 10 V. In …
October 01, 2024
… Laboratory at Carnegie Mellon University (BNL-78657879) for facilitating oCVD deposition and the Material Characterization Facility at Carnegie Mellon University (MCF-677785) for …
September 27, 2024
Polymer electrolyte fuel cells (PEMFCs) are key to developing the hydrogen economy, particularly in the transportation sector. The focus on heavy-duty vehicles has driven research …
September 27, 2024
Herein, we present the successful implementation of a composite anode using a conductive additive to enable low iridium (Ir) loadings for PEMWE while maintaining high-performance …
September 24, 2024
This work focuses on process development in metals additive manufacturing, specifically investigating high-strength low alloy (HSLA) steels in a directed energy deposition (DED)
September 19, 2024
This work models the microstructural evolution as a function of position in laser-wire deposited Ti–6Al–4V parts using a classical multi-component JMAK nucleation and growth model …
September 06, 2024
To enable the greater installed capacity of proton exchange membrane water electrolysis (PEMWE) for clean hydrogen production, associated costs must be lowered while achieving …
September 01, 2024
Additive Manufacturing (AM), also called 3D printing, of electronic circuits is an emerging area of research where devices are fabricated via jetting of functional materials in the form of
September 01, 2024
Additive Manufacturing (AM), also called 3D printing, of electronic circuits is an emerging area of research where devices are fabricated via jetting of functional materials in the form of …
September 01, 2024
Additive Manufacturing (AM), also called 3D printing, of electronic circuits is an emerging area of research where devices are fabricated via jetting of functional materials in the form of
August 30, 2024
An etch parameter study is conducted with the objective of achieving high anisotropy for tantalum (Ta) thin films of more than 1 μm in thickness. The gases explored are Argon (Ar), …
August 26, 2024
Phase transitions in metastable α-, κ (ε)-, and γ-Ga 2 O 3 films to thermodynamically stable β-Ga 2 O 3 during annealing in air, N 2, and vacuum have been systematically investigated …
August 26, 2024
Binder jet additive manufacturing is well suited for fabricating large (order of cm) and geometrically complex ceramic preforms. However, the main challenge in producing ceramic oxide …
August 22, 2024
P2-phased layered oxide materials have been extensively studied as cathode material for sodium-ion batteries due to their high capacities and ionic conductivities, making them …
August 21, 2024
Powder-feed laser beam directed energy deposition (DED-LB) allows for several metal powder compositions to be mixed at variable rate during manufacture. The flexibility of this …
August 19, 2024
• Interaction between domain walls and defects evident in Ni-Mn-Ga alloys.• Future work involves extensive simulations and in-situ Lorentz TEM in order to understand exchange …
August 08, 2024
Bone infections are common complications of joint replacement surgeries. Standard antibiotic therapies often fail due to compromised blood supply and bacterial growth on prosthetics. …
August 01, 2024
Three-dimensional (3D) gold microarchitectures such as micropillars, microwires, and microlattices are used in applications such as implantable biosensors, microelectronic circuits, …
August 01, 2024
Optical microscopy on the machined surfaces of 4-point bend fatigue samples 3D printed in Ti-6Al-4V is used to characterize pores larger than ≈15 microns. A large enough number of …
July 19, 2024
… Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. Some of the work was performed in part of Colorado School of Mines’ Shared Instrumentation …
July 12, 2024
Previous attempts to enhance the stability and performance of MnO 2 -based cathodes for use in aqueous alkaline electrolytes, primarily KOH-based, have relied on a range of additives…
July 08, 2024
This study investigates the influence of thermal history on grain boundary (GB) energy and the grain growth behavior of SrTiO 3 at 1425C. Two thermal profiles were explored: (1) a …
July 01, 2024
Wurtzite-structured materials, which have been recognized for over a century, were previously regarded as polar materials without any indication of ferroelectric properties. However, …
July 01, 2024
This study characterizations the local structure and chemistry of zinc magnesium oxide films, previously recognized solely for their piezoelectric properties. However, upon alloying with …
June 25, 2024
Size and purity of metal phosphate and metal sulfide colloids can control the solubility, persistence, and bioavailability of metals in environmental systems. Despite their importance, …
June 25, 2024
A small ionization needle with an ultrasharp, ultrafine tip is introduced. It is lab-fabricated from tungsten wire and serves as a corona discharge emitter in nanoelectrode atmospheric …
June 19, 2024
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785, and support of this work by the industrial …
June 18, 2024
Heat transfer in nanocomposite materials has attracted great interest for various applications. Multilayer structures provide an important platform to study interfacial thermal transport and …
June 02, 2024
A novel graphene-integrated electro-optic nanophotonic sensor is demonstrated in this paper with very high sensitivity, capable of detecting sub-mV neural signals. The
June 01, 2024
Bioactive degradable scaffolds that facilitate bone healing while fighting off initial bacterial infection have the potential to change established strategies of dealing with traumatic bone …
May 27, 2024
This work addresses conflicting results shown in the literature regarding liquid inclusion agglomeration. It has been shown that liquid calcium aluminates do agglomerate and hence
May 12, 2024
… The author acknowledges use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. With many thanks to my advisor, professor …
May 09, 2024
… of Bertucci Nanotechnology Laboratory at Carnegie Mellon University supported by grant BNL-78657879, and the Materials Characterization Facility supported by grant MCF-677785. …
May 03, 2024
Functional grading (FG) is often used to bond dissimilar metals. However, that approach is complicated from a manufacturing perspective, and the associated challenges can outweigh …
May 01, 2024
This work demonstrates that large pores promote abnormal grain growth, a commonly observed but poorly understood behavior. To investigate this phenomenon, calcia doped …
May 01, 2024
High temperature isothermal oxidation of equimolar AlFeCoNi was conducted at 1000 C by confocal scanning laser microscopy (CSLM) and thermogravimetric analysis (TGA), …
April 23, 2024
Martensite, α‘, commonly appears in Ti-6Al-4V upon rapid cooling from above the β-transus temperature. It is known that α‘ decomposes into α and β at high temperatures but well below …
April 22, 2024
Granular $\text{L}1_0$-FePt thin films with small columnar grains are essential for heat-assisted magnetic recording media. While hexagonal boron nitride(h-BN) has proven effective for …
April 15, 2024
This paper introduces a new 2D representation of the orientation distribution function for an arbitrary material texture. The approach is based on the isometric square torus mapping of …
March 27, 2024
… Carnegie Mellon University supported by grant MCF-677785 and thank Jason Orlando and …
March 12, 2024
Sensing of viral antigens has become a critical tool in combating infectious diseases. Current sensing techniques have a tradeoff between sensitivity and time of detection; with 10–30 …
March 06, 2024
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The authors would also like to thank the …
March 01, 2024
In this work, we demonstrate the use of high-resolution imaging to characterize micro-and nano-scale features of proton exchange membrane water electrolysis (PEMWE) iridium oxide (…
March 01, 2024
We present an unsupervised heuristic-based batched dynamic algorithm for pixel-wise image sampling in a variety of scanned imaging modalities. Our algorithm offers improved …
February 28, 2024
… use of Bertucci Nanotechnology Laboratory at Carnegie Mellon University supported by grant BNL78657879 and the Materials Characterization Facility supported by grant MCF-677785…
February 09, 2024
Plastic upcycling, which involves making plastic-derived products with unique or improved properties from discarded plastic materials, is a promising alternative to recycling and …
February 06, 2024
The existing silicon-carbide-on-insulator photonic platform utilizes a thin layer of silicon dioxide under silicon carbide (SiC) to provide optical confinement and mode isolation. Here, we …
February 06, 2024
The existing silicon-carbide-on-insulator photonic platform utilizes a thin layer of silicon dioxide under silicon carbide to provide optical confinement and mode isolation. Here, we …
February 01, 2024
In this study, we investigated the microstructural variation of Ti-6Al-4 V in inverted pyramid parts built using Laser Powder Bed Fusion (LPBF). Two parts were fabricated with and without …
February 01, 2024
In this study, we investigated the microstructural variation of Ti-6Al-4 V in inverted pyramid parts built using Laser Powder Bed Fusion (LPBF). Two parts were fabricated with and without
February 01, 2024
The discovery of ferroelectricity in polar wurtzite-based ternary materials, such as Al 1− x B x N, has attracted attention due to their compatibility with complementary metal–oxide–…
January 26, 2024
With the continuous advancement of nanotechnology, nanodevices have become crucial components in computing, sensing, and energy conversion applications. The structures of …
January 17, 2024
Ba-rich compositions in the Ba x Sr 1–x MnO 3 (BSMO) cubic perovskite (3C) system are magnetic ferroelectrics and are of interest for their strong magnetoelectric coupling. Beyond x = …
January 08, 2024
Deepak Kumar ORCID logo https://orcid. org/0000-0002-1680-7955, Casey M. Walker ORCID logo https://orcid. org/0009-0003-9261-1334, Maarten P. de Boer ORCID logo https://orcid…
January 04, 2024
Some animals form transient, responsive and solid-like ensembles through dynamic structural interactions. These ensembles demonstrate emergent responses such as spontaneous …
January 04, 2024
Phase transitions in metastable $\alpha$-, $\kappa(\epsilon)$-, and $\gamma$-Ga$_2$O$_3$ films to thermodynamically stable $\beta$-Ga$_2$O$_3$ during annealing in air, N$_2$, …
January 01, 2024
Hydride precipitation in zirconium alloys leads to embrittlement, making it essential to understand their prevalence and stability in the microstructure. Dictionary indexing of Kikuchi …
January 01, 2024
The initial stage oxidation behaviors of commercial low carbon steel (LCS) and advanced high strength steel (AHSS) were comparatively studied at 1150 C in air. Two reaction fronts …
2023
Lithium metal batteries have been regarded as the “holy grail” for next-generation highenergy-density batteries in the past few decades, due to its high theoretical capacity (3860 …
2023
Several characterization techniques to quantify electrode microstructure in three-dimensional (3D) space, such as focused-ion-beam scanning-electron-microscopy (FIB-SEM) and X-…
2023
We show that Bloch chirality preference in magnetic domain walls and skyrmions can originate from the interplay between an interfacial Dzyaloshinskii-Moriya interaction (iDMI) and a …
2023
Phase change memory devices are used in applications for neuromorphic computing as artificial synapses. However, the cycle-to-cycle variability of the partial SET operations, likely …
2023
As human civilization has entered its 21 st century, the enhancement of computational power is high in demand and has presented great challenges for researchers in different fields of
December 29, 2023
Addressing the uncertainty and variability in the quality of 3D printed metals can further the wide spread use of this technology. Process mapping for new alloys is crucial for determining …
December 26, 2023
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785, and Nanofabrication Laboratory at Carnegie …
December 11, 2023
This study binder jets a tungsten carbide‐nickel (WC‐Ni) sintered‐agglomerated composite powder, and postprocesses the preforms using an initial sintering step followed by a hot …
December 01, 2023
This work focuses on the occurrence of shrinkage porosity and its manifestation in Alloy 718 during laser-powder bed fusion (PBF-LB) processing. Shrinkage porosity is a common …
November 29, 2023
Nanoscale ferroelectrics that can be integrated into microelectronic fabrication processes are highly desirable for low-power computing and non-volatile memory devices. However, …
November 28, 2023
Phase identification in HfO 2 -based thin films is a prerequisite to understanding the mechanisms stabilizing the ferroelectric phase in these materials, which hold great promise in next-…
November 22, 2023
κ-Ga 2 O 3 has been predicted to be a potential ferroelectric material. In this work, undoped Ga 2 O 3 films were grown by either plasma-enhanced atomic layer deposition (PEALD) or …
November 22, 2023
κ-Ga2O3 has been predicted to be a potential ferroelectric material. In this work, undoped Ga2O3 films were grown by either plasma enhanced atomic layer deposition (PEALD) or …
November 11, 2023
Implementing stimulated Raman scattering in a low-loss microresonator could lead to Raman lasing. Here, we report the demonstration of an efficient Raman laser with >50% power …
November 01, 2023
This work demonstrates an experimental technique to image melt pool temperature fields with a commercial color camera for laser-directed energy deposition (L-DED) processes. The …
November 01, 2023
Hexagonal boron nitride ( ${h}$ BN) has recently been investigated as a promising grain boundary material (GBM) for the nanogranular structure of L10-FePt-based heat-assisted …
October 23, 2023
… from a DoD Vannevar-Bush Faculty Fellowship (N00014-16-1-2821), as well as the computational facilities of the Materials Characterization Facility at CMU under grant # MCF-677785. …
October 19, 2023
Nominally phase-pure γ-Ga 2 O 3 was deposited on (100) MgAl 2 O 4 within a narrow temperature window centered at∼ 470 C using metal-organic chemical vapor deposition. The film …
October 02, 2023
Atomic resolution scanning/transmission electron microscopy (S/TEM) and energy-dispersive x-ray (EDX) analysis were used to determine the effects of annealing at 800–1000 C in air …
September 26, 2023
Understanding the communication of individual neurons necessitates precise control of neural activity. Photothermal modulation is a remote and non‐genetic technique to control neural …
September 03, 2023
Transition metal carbides (MXenes) are novel 2D nanomaterials with exceptional properties, promising significant impact in applications such as energy storage, catalysis, and energy …
September 01, 2023
Metal additive manufacturing (AM) offers increased design freedom compared to conventional manufacturing methods, but the properties of the resulting parts can be unpredictable. …
August 25, 2023
High-nickel layered oxides, eg, LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811), are promising candidates for cathode materials in high-energy-density lithium-ion batteries (LIBs). …
August 01, 2023
The microstructure, porosity and Vickers hardness of pure W, W - 15% Ta and W - 21% Ta fabricated by Laser Powder Feed Directed Energy Deposition (LPF-DED) in ambient air and …
July 22, 2023
Currently, a large variety of commercial ferroelectric materials have limited compatibility with semiconductor processing technology, which hinders their use in in-memory computing …
July 22, 2023
This work develops a method–based on spatial statistics commonly used in the field of geographical information sciences (GIS)–to analyze atomic scale clustering behavior from high …
July 17, 2023
This present study illustrates the synthesis and preparation of polyoxanorbornene‐based bottlebrush polymers with poly(ethylene oxide) (PEO) side chains by ring‐opening metathesis …
July 14, 2023
… MCF-677785. The authors thank Barbie Varghese for assistance with 3D printing, Ant Yucesoy, and the staff at Materials Characterization Facility at Carnegie Mellon University …
July 06, 2023
… from the National Institutes of Health (Grant R21EB026073) as well as use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The …
July 04, 2023
Over the years, efforts in bioinspired soft robotics have led to mobile systems that emulate features of natural animal locomotion. This includes combining mechanisms from multiple …
July 03, 2023
Ga 2 O 3 films were deposited on (100) MgAl 2 O 4 spinel substrates at 550, 650, 750, and 850 C using metal-organic chemical vapor deposition and investigated using x-ray diffraction …
July 01, 2023
We introduce an experimental method to image melt pool temperature with a single commercial color camera and compare the results with multi-physics computational fluid dynamic (…
July 01, 2023
Al-doped SrTiO 3 synthesized in a SrCl 2 melt is among the most efficient known photocatalysts for water splitting. Although the effect of Al 3+ incorporation has been widely discussed, …
July 01, 2023
Dual-layer granular L1 0 -FePt media with a non-magnetic spacer layer could enable multi-level heat-assisted magnetic recording (HAMR). Selecting an intermediate …
June 28, 2023
The crystal structure of Ba(Mg 1/3 , Ta 2/3 )O 3 , which is thought to contribute to its microwave properties, was analyzed at the atomic resolution using scanning transmission electron …
June 09, 2023
Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. Characterization Facility at Carnegie Mellon University supported by grant MCF-677785.
June 07, 2023
Implantable cell therapies and tissue transplants require sufficient oxygen supply to function and are limited by a delay or lack of vascularization from the transplant host1, 2. Exogenous …
May 15, 2023
Defect content is one of the major obstacles to the wider adoption of additive manufacturing (AM) as the field is still actively learning how to control it, developing standards to quantify it,
May 12, 2023
At-home water filters for drinking water are used by over 100 million Americans. These filters are successful at removing heavy metals from drinking water; however, when heavy metals …
May 11, 2023
The ability to sense and stimulate cellular and tissue electrophysiology is fundamental to input/output bioelectronics. Their functionality is primarily governed by the structural and …
May 09, 2023
Sintering theory predicts no long-range mass transport or distortion for uniformly heated particles during particle coalescence. However, in sintering-based manufacturing processes, …
May 01, 2023
Thin (40–150 nm), highly doped n+(10 19–10 20 cm− 3) Ga 2 O 3 layers deposited using pulsed laser deposition (PLD) were incorporated into Ti/Au ohmic contacts on (001) and (010) …
April 28, 2023
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University (CMU) supported by grant MCF-677785 as well as rapid prototyping tools at CMU …
April 17, 2023
This study explores the relationships between material quench rate during processing and the resulting structural and electrochemical properties of Li[Ni 0.25 Li 0.167 Mn 0.583 ]O 2 . …
April 01, 2023
A push for environmentally friendly approaches to biomaterials fabrication has emerged from growing conservational concerns in recent years. Different stages in silk fibroin scaffold …
March 20, 2023
In this paper, we present an experimental study of L1 0 -FePt granular films with crystalline boron nitride (BN) grain boundary materials for heat assisted magnetic recording (HAMR). It …
March 03, 2023
BaTiO 3 heated in an excess of SrCl 2 at 1150 C converts to SrTiO 3 through an ion exchange reaction. The SrTiO 3 synthesized by ion exchange produces hydrogen from pH 7 water at …
March 01, 2023
Second-life battery applications can reduce the environmental impacts and life-cycle costs of electrochemical energy storage. The feasibility of reusing battery packs is strongly …
March 01, 2023
Fabricating highly ordered tall L1 0–FePt with a small grain pitch distance on a commercially available glass substrate is crucial to realize heat-assisted magnetic recording (HAMR) …
February 01, 2023
Aerial seeding can quickly cover large and physically inaccessible areas 1 to improve soil quality and scavenge residual nitrogen in agriculture 2 , and for postfire reforestation 3 , 4 – 5 …
January 28, 2023
Phase change memory devices are a leading candidate for non-volatile memory arrays, as artificial synapses in neuromorphic circuits, and for in-memory computing. These applications …
January 04, 2023
Reactive oxygen species (ROS) generation to induce cell death is an effective strategy for cancer therapy. In particular, chemodynamic therapy (CDT), using Fenton-type reactions to …
January 01, 2023
Q. Zhang, C. Lian, Q. Xu, Y. Yu, M. Skowronski; Density of amorphous sputtered Ge 2 Sb 2 Te 5 thin films. AIP Advances 1 January 2023; 13 (1): 015014. https://doi. org/10.1063/…
2022
This body of work involves the preparation, structural characterization, and applicationdriven evaluation of biomaterials comprised of nanocarbon (graphene-derived) and synthetic …
2022
Over the last 15 years, material systems exhibiting the Dzyaloshinskii–Moriya interaction (DMI) have been extensively explored for their rich topological physics and promise as building …
2022
Engineered and incidental nanomaterials (ENMs and INMs) released from anthropogenic sources are a concern for the environment and human health. However, detecting and
2022
The fundamental interactions of liquid iron with carbon, titanium, and nitrogen are at the heart of the blast furnace process, dictating productivity and longevity. The interactions of liquid
December 23, 2022
The competition between epitaxial vs. equiaxed solidification has been investigated in CMSX-4 single crystal superalloy during laser melting as practiced in additive manufacturing. …
December 23, 2022
We have investigated the thermal stability of Co/Au and Ni/Au Schottky contacts to Sn-doped ( 2 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \…
November 14, 2022
MCF677785. A huge thank you to current and past MCF staff, Betsy Clark, Dan Flaherty, Sebastian Calderon, and Logan Solotky in training and assistance with materials
November 14, 2022
… MCF677785. A huge thank you to current and past MCF staff, Betsy Clark, Dan Flaherty, Sebastian Calderon, and Logan Solotky in training and assistance with materials …
October 21, 2022
Accurately determining local polarization at atomic resolution can unveil the mechanisms by which static and dynamical behaviors of the polarization occur, including domain wall …
October 18, 2022
Finding and quantifying engineered nanomaterials (ENMs) in soil are challenging because of the abundance of natural nanomaterials (NNMs) with the same elemental composition, for …
October 09, 2022
This work shows how PEO-based solid state-electrolyte materials can be more stable than commonly expected when used with some types of high voltage cathode materials. …
October 01, 2022
… facility at Carnegie Mellon University supported by grant MCF-677785 for SEM and PFIB. … facility at Carnegie Mellon University supported by grant MCF-677785 for SEM and PFIB. …
September 27, 2022
In this work, we operate on a small dataset available from the technical literature to predict the oxidation-induced mass change at 1000 C of thousands of new alloy compositions using “…
September 19, 2022
We demonstrate, for the first time, a ternary content-addressable memory (TCAM) architecture based on phase change nanoelectromechanical relays (PCNRs). The non-volatility (NV), …
September 14, 2022
… of the Center for Iron and Steelmaking Research and the use of the Materials Characterization Facility at Carnegie Mellon University, which was supported by grant MCF-677785. The …
September 01, 2022
To better understand the effects of infiltration on local electrochemistry and transport in solid oxide fuel cell (SOFCs) electrodes, high-throughput, high-performance finite element …
August 19, 2022
The nickel-based superalloy, Haynes 230 (H230), is widely used in high-temperature applications, eg, heat exchangers, because of its excellent high-temperature mechanical …
August 18, 2022
Rapid detection of antibodies during infection and after vaccination is critical for the control of infectious outbreaks, understanding immune response, and evaluating vaccine efficacy. In …
August 01, 2022
We report on a systematic investigation of newly developed (Fe 70 Ni 30 ) 80 Nb 4 B 14 Si 2 metal amorphous nanocomposites (MANCs) and the factors affecting their surface …
July 28, 2022
A facile synthetic route toward silica brush particles with random and gradient copolymer grafts comprised of n-butyl acrylate (BA) and methyl methacrylate (MMA) using surface-initiated …
July 25, 2022
Ferroelectricity in binary oxides including hafnia and zirconia has riveted the attention of the scientific community due to the highly unconventional physical mechanisms and the …
July 01, 2022
Nanocrystalline sp 2-boron nitride (BN) thin films have been grown for 2 and 4.5 h on mechanically polished polycrystalline pyrolytic boron nitride substrates at 1060 C via chemical …
June 28, 2022
Many contemporary lithium-ion battery cathode materials require the rare earth element cobalt. This has become a large problem in the industry as cobalt is predominantly mined as a …
June 22, 2022
… The authors acknowledge the use of the materials characterization facility at Carnegie Mellon University supported by grant MCF-677785 for AFM. All studies involving human subjects …
June 01, 2022
Electromigration in Ge 2 Sb 2 Te 5 and N-doped Ge 2 Sb 2 Te 5 line cell structures has been studied by mapping out electric field/current-induced composition changes using x-ray …
May 24, 2022
Nonvolatile memory devices have received a lot of interest in both industry and academia in the last decade. Transition metal oxide-based memories offer potential applications as …
April 21, 2022
Porous ceramics offer unique properties that can bring advances to many application areas. The freeze‐casting process has a strong potential for fabricating porous ceramics; however, …
April 11, 2022
Photocatalytic hydrogen production rates have been measured from Al‐doped SrTiO 3 with a range of controlled shapes and sizes using a high‐throughput parallelized and automated …
April 09, 2022
The design, modeling, and experimental validation of a highly scalable phase change electromechanical relay are present. The Phase Change NEMS Relay (PCNR) is a nonvolatile …
March 14, 2022
Dendrites and dead lithium formation over prolonged cycling have long been challenges that hinder the safe implementation of metallic Li anodes. Herein, we employ polymer-…
March 07, 2022
A systematic investigation has been performed to optimize the microstructure of L1 0-FePt–SiO x granular thin films as recording media for heat-assisted magnetic recording. The FePt–…
March 01, 2022
Nanocrystalline sp 2-BN thin films have been grown on (0001) 4H-SiC substrates at 1030 C via continuous flow and discontinuous flow-modulated chemical vapor deposition …
February 16, 2022
Oxidation of hot spatter during laser powder bed fusion results in the deposition of oxides on the build surface. In the case of IN718—as studied in this work—the oxide is alumina. While …
February 15, 2022
Aerial seeding can quickly cover large and physically inaccessible areas1 to improve soil quality 19 and scavenge residual nitrogen in agriculture2, for postfire reforestation3–6 and …
February 08, 2022
Identifying engineered nanomaterials (ENMs) made from earth-abundant elements in soils is difficult because soil also contains natural nanomaterials (NNMs) containing similar …
February 07, 2022
Phase and microstructural evolution of gallium oxide (Ga 2 O 3) films grown on vicinal (0001) sapphire substrates was investigated using a suite of analytical tools. High-resolution …
February 01, 2022
The propensity of cells to align in particular directions is relevant to a number of areas, including tissue engineering and biohybrid robotics. Cell alignment is modulated through various …
February 01, 2022
Microstructure quantification is becoming an important ingredient for predicting material behavior. Here, we present a methodology to quantify 2-phase (α + β) basketweave Ti-6Al-4 V …
February 01, 2022
Grant CMMI-1854702, in part by the Kavcic-Moura Endowment Fund, and in part by the Materials Characterization Facility at Carnegie Mellon University under Grant MCF-677785.
February 01, 2022
In this article, we present the fabrication of FePt/FePt-BN/FePt-SiO x and conventional FePt/FePt-C for heat-assisted magnetic recording (HAMR) on Corning Lotus NXT glass substrates. …
January 14, 2022
Rapid detection of antibodies to SARS‐CoV‐2 is critical for COVID‐19 diagnostics, epidemiological research, and studies related to vaccine evaluation. It is known that the …
January 03, 2022
… We would also like to thank the Materials Characterization Facility (MCF) at Carnegie Mellon University, supported by grant MCF-677785. Finally, we thank Carnegie Mellon University …
January 01, 2022
Fused deposition modeling (FDM)-based 4D printing uses thermoplastics to produce artifacts and requires computational analysis to assist its design processes of complex geometries. …
January 01, 2022
In this study, Li[Ni .25 Li .167 Mn .583 ]O 2 (LLRNMO) was exposed to acidic solutions of H 3 PO 4 , H 2 SO 4 , HCl, and HNO 3 in an attempt to chemically motivated the phase …
2021
Nanomaterials exhibit outstanding properties such as ultra-high surface-to-volume ratios and unique size/interface effects that are well-suited for electrochemical cells and electronic …
2021
The effects of crystal orientation and ferroelectric domain structure on the photochemical reactivity of La 2 Ti 2 O 7 have been measured. Electron backscattered diffraction was used to …
2021
A new simulation-based pattern-matching method is developed to retrieve the deformation tensor from electron backscatter diffraction patterns. Minimizing the least-squares difference …
2021
The use of the Materials Characterization Facility at Carnegie Mellon University is also acknowledged, which is supported by the grant MCF-677785. iii Doctoral Committee: Prof.
2021
I would also like to acknowledge use of the Materials Characterization Facility at Carnegie Mellon University under grant number MCF-677785. Addtionally, thank you to Lyudmila
December 22, 2021
Although ceramic particle‐metal matrix materials (ie, cermets) can offer superior performance, manufacturing these materials via conventional means is difficult compared to the …
December 13, 2021
The three‐dimensional microstructure of 8% yttria‐stabilized zirconia (YSZ) was measured by electron backscatter diffraction and focused ion beam serial sectioning. The relative grain …
December 01, 2021
Sensing of clinically relevant biomolecules such as neurotransmitters at low concentrations can enable an early detection and treatment of a range of diseases. Several nanostructures …
December 01, 2021
FeCo (60%-70% Fe, 30%-40% Co at.%) alloys have been used as write transducer materials due to their large saturation magnetization at room temperature (μ 0 M = 2.45 T). In this …
December 01, 2021
We also acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. Use was made of computational facilities purchased
November 29, 2021
Electron microscopy in the Materials Characterization Facility at Carnegie Mellon University was supported under grant number MCF-677785. The Micro-CT facility used in this work
November 11, 2021
Non-volatile memory devices have received a lot of interest in both industry and academia in the last decade. Transition metal oxide-based memories offer potential applications as …
November 01, 2021
Wound dressings based on natural materials, such as fish skin, represent an important strategy for the treatment of burns. Despite their utility, contamination of these natural materials …
October 28, 2021
… MCF-677785. MDK is also grateful for the financial support of the National GEM Consortium as well as the Neil and Jo Bushnell and Bradford and Diane Smith Engineering Fellowships…
October 18, 2021
In this work, we fabricate multidimensional silicon-graphene hybrid nanostructures composed of three-dimensional (3D) out-of-plane graphene flakes on a silicon nanowire core. By …
October 15, 2021
The objectives of the research presented in this Thesis have been to (1) advance the field of homo-and heteroepitaxial growth of sp 2-hybridized boron nitride (sp 2-BN) thin films via
October 13, 2021
… MCF-677785. Dirk Kruger gratefully acknowledges travel support by the School on Production of Clean Steel, hosted by the Southern African Institute of Mining and Metallurgy in 2016. …
October 08, 2021
Magnetic skyrmions are topologically protected spin textures which have garnered a great deal of attention in recent years for their favorable properties for nonvolatile memory and …
October 03, 2021
The microstructures of Ti-6Al-4V following laser processing depend primarily on the phase transformation of β to α, but their development is constrained by the rapidly changing …
October 01, 2021
The minimally invasive treatment of intracranial aneurysms by endovascular coiling is attractive yet faces challenges related to the degradation of fibrin clots in the aneurysm sac over …
September 28, 2021
Understanding and developing efficient methods to join dissimilar materials is important in additive manufacturing technology. Approaches include functional grading, adding a filler …
September 21, 2021
This study presents a method to automatically identify inclusion clusters within a sample. Utilizing the output of scanning electron microscopy’s automated feature analysis along with …
September 15, 2021
Proton exchange membrane fuel cells (PEMFC) with cathodes using platinum group metal-free (PGM-free) catalysts could significantly reduce costs, but the lower volumetric oxygen …
September 09, 2021
… D18AP00011), as well as the use of the Materials Characterization Facility at Carnegie Mellon University supported by the grant MCF-677785. MDK is also grateful for the support of the …
August 31, 2021
Demand for rare earth elements (REEs) is increasing, and REE production from ores is energy-intensive. Recovering REEs from waste streams can provide a more sustainable …
August 25, 2021
Understanding cellular electrical communications in both health and disease necessitates precise subcellular electrophysiological modulation. Nanomaterial-assisted photothermal …
August 20, 2021
… We acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University, supported by the NSF (MCF-677785). This research was supported by the National …
August 13, 2021
Photoluminescent nanosized quasi-spherical polymeric assemblies prepared by the hydrothermal reaction of polyacrylonitrile (PAN), ht-PLP PAN , were demonstrated to have the …
August 12, 2021
Five plant trials with high, medium, and low Ca total /O total ratios, as well as higher Al and S contents in steels were conducted to study the validity of thermodynamic model predictions …
August 11, 2021
This work addresses conflicting results in the literature regarding liquid inclusion agglomeration. To assess whether liquid calcium aluminates do agglomerate in liquid steel, laboratory …
August 01, 2021
A recent paradigm shift in the electron diffraction community has benefited from accessibility of large data sets and ever more complex designs of convolutional neural networks (CNNs). …
July 30, 2021
SEM-based diffraction techniques are powerful tools for materials characterization. One of the most wellknown of these techniques is Electron Backscatter Diffraction (EBSD), which can …
July 22, 2021
Combinatorial substrate epitaxy (CSE) was used to investigate the epitaxial phase competition between the three-layered cubic (3C) and the four-layered hexagonal (4H) perovskite …
July 21, 2021
In some applications, deep desulfurization and deoxidation of steels without the use of aluminum are required, using Si as a deoxidant instead, with double-saturated slags in the CaO-…
July 14, 2021
The influence of dispersoids and grain boundary characteristics on the crack propagation behavior in AA3xxx during deep drawing has been investigated using scanning transmission …
July 09, 2021
Atom probe tomography (APT) was utilized to probe composition at the nanoscale across cathode/electrolyte interfaces for anode-supported commercial SOFCs. These SOFCs …
July 01, 2021
This thesis focuses on the development of a low-cost, portable, and reliable MXene-based chemiresistive sensor for detecting formaldehyde (HCHO), a carcinogenic volatile organic
July 01, 2021
This thesis focuses on the development of a low-cost, portable, and reliable MXene-based chemiresistive sensor for detecting formaldehyde (HCHO), a carcinogenic volatile organic …
June 29, 2021
Metals do not wet oxides as a general rule. Exceptions to this occur in the presence of dissolved species or chemical reactions. Fe–C sat –Ti is seen to wet alumina crucibles but not …
June 21, 2021
Using the power of light to drive controlled radical polymerizations has provided significant advances in synthesis of well-defined polymers. Photoinduced atom transfer radical …
June 16, 2021
… D18AP00011) and the use of the Materials Characterization Facility at CMU, supported by grant MCF-677785. MDK is also grateful for the financial support of the National GEM …
June 14, 2021
Predicting the failure of crystalline materials at high strain rates requires knowledge of the underlying failure mechanisms and their dependence on microstructure. In this study, a 3D-…
May 27, 2021
Metal/oxide composites with ultrafine-grained metallic microstructures stabilized by a dispersion of oxide particles exhibit a number of desirable characteristics including high strength …
May 21, 2021
The structure of materials can have a big impact on the properties and performance of the material. A variety of methods are used by materials scientists and engineers to study the …
May 03, 2021
Nisrit Pandey ORCID logo https://orcid. org/0000-0003-1497-5135 a), Maxwell Li ORCID logo https://orcid. org/0000-0002-3784-670X, Marc De Graef ORCID logo https://orcid. org/0000-…
April 21, 2021
In this experimental study, we present a dual-layer structure of FePt-boron nitride (BN)/FePt-SiO x granular media for the heat-assisted magnetic recording. The boron nitride (BN) was …
April 21, 2021
In this experimental study, we present a dual-layer structure of FePt-BN/FePt-SiOx granular media for the heat-assisted magnetic recording (HAMR). The boron nitride (BN) was …
April 15, 2021
We evaluate the micromagnetic energy of a domain wall (DW) contained in a thin, horn-shaped nanostructure and propose a method to extract the strength of the interfacial …
April 01, 2021
Graphene with its unique electrical properties is a promising candidate for carbon-based biosensors such as microelectrodes and field effect transistors. Recently, graphene biosensors …
April 01, 2021
VDM Alloy 780 is a new nickel-based superalloy developed for higher service temperatures up to 750 C. In addition to fine γ′-Ni 3 (Al,Ti) strengthening precipitates, grain boundary …
April 01, 2021
CMMI-1635332, in part by the Kavcic-Moura Endowment Fund, and in part by the Carnegie Mellon University through the Materials Characterization Facility under Grant MCF-677785.
March 18, 2021
… MCF-677785, and the partial support from NIH Grant No. MH114233. This work was funded (in part) by the Dowd Fellowship from the College of Engineering at Carnegie Mellon …
March 12, 2021
Electromagnetic (EM) field exposure during materials synthesis offers the opportunity to engineer novel atomic structures and modify reaction kinetics beyond the capabilities of …
March 01, 2021
Each year approximately 1.3 billion tons of food is either wasted or lost. One of the most wasted foods in the world is bread. The ability to reuse wasted food in another area of need, …
February 28, 2021
Extensive cytocompatibility testing of 2D nanocarbon materials including graphene oxide (GO) has been performed, but results remain contradictory. Literature has yet to account for …
February 23, 2021
The nitrogen isotope exchange reaction was applied to measure the interfacial reaction rate constant of nitrogen with liquid cobalt at 1823 K, 1873 K, and 1923 K. Measured values …
February 22, 2021
Electrode–electrolyte interfaces (EEIs) affect the rate capability, cycling stability, and thermal safety of lithium-ion batteries (LIBs). Designing stable EEIs with fast Li + transport is crucial …
February 16, 2021
Slag doubly saturated with CaO and MgO was used to investigate slag–steel–inclusion reactions for a third-generation advanced high-strength steel with an intermediate level of …
February 16, 2021
The Dzyaloshinskii–Moriya interaction (DMI) in magnetic systems stabilizes spin textures with preferred chirality, applicable to next‐generation memory and computing architectures. In …
February 01, 2021
Antiskyrmions can potentially be supported by C2 v thin films which permit both Rashba-and Dresselhaus-type Dzyaloshinskii-Moriya interactions (DMI). This work presents C2 v Ag/Pt/…
January 21, 2021
… We acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University, supported by the NSF (MCF-677785). This research was supported by the National …
January 15, 2021
This work demonstrates the processing, modeling, and characterization of nanocrystalline refractory metal tantalum (Ta) as a new structural material for microelectromechanical system (…
January 12, 2021
Fuel cell electric vehicles (FCEVs) powered by polymer electrolyte membrane fuel cells (PEMFCs) need an improvement in their durability and robustness to achieve broader …
January 06, 2021
Technologies for removal of mercury from produced water and hydrocarbon phases are desired by oil and gas production facilities, oil refineries, and petrochemical plants. Herein, we …
January 06, 2021
The balance of bacterial populations in the human body is critical for human health. Researchers have aimed to control bacterial populations using antibiotic substrates. However, …
2020
I have advanced the knowledge of the composition of and sources of ice-nucleating particles in biomass-burning emissions, which have previously been observed only inconsistently …
2020
With the proliferation of grain boundary data in materials science from both experiments and simulations, tools are needed to explore the five dimensional space of grain boundaries …
2020
An excessive residual stress is one of the primary challenges for additive manufacturing of metal products. It often leads to part’s distortion, powder recoating blade failure, and cracking. …
2020
Laser powder bed fusion (LPBF) is one of the most popular metallic AM processes. It produces a 3D-parts by repeated powder layer deposition followed by laser scanning. A major
December 22, 2020
… The authors acknowledge use of the materials characterization facility at Carnegie Mellon University supported by grant MCF-677785 for SEM and Raman Spectroscopy. All data …
December 01, 2020
Metal additive manufacturing (AM) has witnessed rapid development and ever-increasing interest from various industrial sectors over the last two decades. However, insufficient …
December 01, 2020
The author acknowledges use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. I have been helped and supported by a
November 29, 2020
Objective. Three-dimensional (3D) neuronal spheroid culture serves as a powerful model system for the investigation of neurological disorders and drug discovery. The success of such …
November 18, 2020
Understanding the material property origins of performance decay in carbon electrodes is critical to maximizing the longevity of capacitive deionization (CDI) systems. This study …
November 18, 2020
Physical changes occurring in TiN/TaO 2.0±0.2/TiN resistive random-access memory devices after prolonged cycling have been analyzed by two scanning transmission electron …
November 18, 2020
Dopamine (DA) is a monoamine neurotransmitter involved in the modulation of various physiological brain functions, including learning, motivation, reward, and motor functions. The …
November 17, 2020
The laser melting process is accompanied by rapid evolution in temperature, phase, structure, and strain because of its high heating and cooling rates. In this study, the evolution of …
November 17, 2020
The laser melting process is accompanied by rapid evolution in temperature, phase, structure, and strain because of its high heating and cooling rates. In this study, the evolution of
November 11, 2020
Direct reduced iron (DRI), as a primary feedstock in ironmaking and steelmaking, must maintain strength and integrity during processing, transportation, and use to avoid any
November 11, 2020
Dislocations in crystalline materials have a strong impact on mechanical properties. As a result, identification of dislocation type and density has been a core part of materials …
November 11, 2020
The work presented in this thesis investigates material systems and conditions to stabilize chiral spin textures such as domain walls and Skyrmions in Pt/Co/Ni based asymmetric …
November 11, 2020
Topologically protected spin textures stabilized by the Dzyaloshinskii-Moriya interaction (DMI) have great potential for nonvolatile memory and neuromorphic computing. Towards this …
November 11, 2020
The work presented in this thesis document seeks to confirm the experimental existance of domain wall substructures in the presence of the Dzyaloshinskii-Moriya interaction that we …
November 09, 2020
Calcium-containing ferrosilicon—FeSi(Ca)—does give much higher calcium yield than calcium disilicide during calcium treatment of steel under laboratory conditions, in line with …
November 05, 2020
Mechanical removal of metal induces deformation and changes to microstructural characteristics of the newly created surfaces. The mode and extent of deformation can be difficult to …
November 02, 2020
Alumina inclusions generated from aluminum deoxidation may undergo several transformations depending on steelmaking conditions. Under reducing conditions, in contact with MgO-…
November 01, 2020
A confocal scanning laser microscope (CSLM) with a hot stage was used to study the dissolution of TiN in liquid cobalt under different gas atmospheres. The dissolution of cubic …
October 27, 2020
The campaign life of blast furnaces can be greatly limited by the interactions of carbon walls with liquid Fe-C sat . Numerous carbon forms have been investigated but not glassy carbon. …
October 15, 2020
Accurate indexing of EBSD patterns presents a challenging problem. We propose a new convolutional neural network (EBSD-CNN) to realize real-time indexing of EBSD patterns; we …
October 12, 2020
Soft composites that use droplets of gallium‐based liquid metal (LM) as the dispersion phase have the potential for transformative impact in multifunctional material engineering. …
October 01, 2020
Over the past decade, extensive efforts have been carried out to increase the durability of polymer electrolyte fuel cells (PEFCs) under voltage reversal conditions primarily caused by …
September 24, 2020
Scanning Transmission Electron Microscopy Diffraction Contrast Imaging (STEM-DCI) has been gaining popularity for the identification and analysis of dislocations in crystalline …
September 21, 2020
The effects of gas composition and the extent of reduction on the compressive strength of direct reduced iron (DRI) were investigated. Gas mixtures containing different proportions of …
September 09, 2020
Previous studies have shown that the orientation relationships which develop in hetero-epitaxy are strongly influenced by the alignment of steps in the deposit with the pre-existing steps …
September 05, 2020
In this work, we present characterization of surface oxidation and crystallization behavior of Metal Amorphous Nanocomposite (MANC) (Fe 70 Ni 30 ) 80 Nb 4 Si 2 B 14 alloys via …
September 05, 2020
I acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University, supported by grant MCF-677785. In addition, this work was supported by the DOE/EERE-
September 01, 2020
The development of overgrown grains during sub-solvus annealing of a polycrystalline γ − γ ′ nickel-base alloy is investigated, with special emphasis on the primary γ′ precipitates. …
September 01, 2020
… MCF-677785. This work was supported by an Early Stage Innovations grant from NASA’s Space Technology Research Grants Program (Grant No. NNX17AD03G). …
August 28, 2020
Control of non-metallic inclusions is essential for the production of high-quality steel. This review summarizes processes that change inclusion compositions and concentrations during …
August 24, 2020
Accurate detection, characterization, and prediction of defects has great potential for immediate impact in the production of fully-dense and defect free metal additive manufacturing (AM) …
August 24, 2020
… We acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University, supported by the NSF (MCF-677785). This research was supported by the NSF (AGS-…
August 06, 2020
Dictionary indexing is a new approach to the indexing of electron backscatter diffraction (EBSD) patterns. In this contribution, we will describe the underlying forward model as well as …
August 06, 2020
The cell‐chip coupling is in general regulated by the interplay between cells and the material surface at the interface. Electroactive planar materials have shown limited crosstalk with …
August 01, 2020
The orientations and surface structures of ferroelastic CaTiO 3 crystals within a polycrystalline ceramic were measured by electron backscatter diffraction and atomic force microscopy (…
July 29, 2020
Elastomers embedded with micro- and nanoscale droplets of liquid metal (LM) alloys like eutectic gallium–indium (EGaIn) can exhibit unique combinations of elastic, thermal, and …
July 29, 2020
Isothermal heat treatment can not only modify steel microstructure, but also non-metallic inclusions. In this work, heat treatment experiments were conducted between 1373 and 1573 K (…
July 15, 2020
The rates of hydrogen production from four different BaTiO 3 /TiO 2 core/shell photocatalysts and their components were measured as a function of pH using a parallelized and …
July 02, 2020
Fiber optic sensor technology offers several advantages for harsh-environment applications. However, the development of optical gas sensing layers that are stable under harsh …
June 10, 2020
The objective of this study is to assess how method parameters impact the extraction of moderately soluble CuO nanoparticles (NPs) from a standard natural soil (LUFA 2.1) suitable for …
June 01, 2020
… and Engineering Materials Characterization Facility supported by Grant MCF-677785. … Science and Engineering Materials Characterization Facility supported by Grant MCF-677785. …
May 28, 2020
Microwave radiation (MWR), a type of electromagnetic excitation source, reduces the synthesis temperature and processing time for chemical reactions compared to traditional …
May 22, 2020
The valence change model describes the resistive switching in metal oxide-based devices as due to electroreduction of the oxide and subsequent electromigration of oxygen vacancies. …
May 18, 2020
The fabrication and integration of microactuators with 3D micromechanisms are necessary to develop microrobots with higher capability and complexity. In this work, a two-step …
May 15, 2020
Composites of liquid crystal elastomer (LCE) that are electrically conductive have the potential to function as soft “artificial muscle” actuators that can be reversibly stimulated with …
May 01, 2020
Four-dimensional (4D) printing, a new technology emerged from additive manufacturing (3D printing), is widely known for its capability of programming post-fabrication shape-changing …
May 01, 2020
Titanium production is a long and complicated process. What we often consider to be the standard method of primary titanium production (the Kroll process), involves many complex
May 01, 2020
Electron backscatter diffraction (EBSD) is a mature experimental technique used to determine grain orientations in crystalline materials. In this chapter, we discuss a recent indexing …
April 24, 2020
The photochemical reactivity of the SrTiO 3 surface is affected by the pH of the surrounding aqueous solution. Scanning electron microscopy and atomic force microscopy have been …
April 16, 2020
We examine the substructures of magnetic domain walls (DWs) in [Pt/(Co/Ni) M/Ir] N multi-layers using a combination of micromagnetic theory and Lorentz transmission electron …
April 14, 2020
Resistive switching devices based on transition metal oxides require formation of a conductive filament in order for the device to be able to switch. Such filaments have been proposed …
April 02, 2020
This study focuses on the initial stages of iron surface oxidation, studied by confocal scanning laser microscopy. Pure iron cubes were prepared and polished for in situ observation. …
March 31, 2020
Microelectrode arrays (MEAs) have enabled investigation of cellular networks at sub-millisecond temporal resolution. However, current MEAs are limited by the large electrode footprint …
March 10, 2020
The increasing demand on memory from the next-generation technologies facilitated the pathfinding and development of emerging memories, among which Resistive Random-Access
March 04, 2020
The gangue content in iron ore pellets that are used to produce direct-reduced iron (DRI) affects the slag volume during subsequent electric furnace steelmaking. Industrial and …
March 03, 2020
As a refractory metal with a high melting temperature and large coefficient of thermal expansion, tantalum (Ta) is of great interest as a structural material in MEMS. One of the major …
March 02, 2020
The author acknowledges use of the Materials Characterization Facility (MCF) at Carnegie Mellon University supported by grant MCF-677785. Among the MCF, special thanks to Dr.
March 01, 2020
Electrodeposition is widely used to deposit films in technological applications, but when the current efficiency is low, injected hydrogen can strongly affect the materials properties of an …
February 11, 2020
Epitaxial films of β-(Al x Ga 1−x ) 2 O 3 , β-Ga 2 O 3 , and β-(In x Ga 1−x ) 2 O 3 were grown on (001) sapphire substrates via metalorganic chemical vapor deposition (MOCVD). The …
February 03, 2020
Elucidation of the mutual influence of composition and architecture of polymer canopies on the assembly and mechanical properties of brush particle-based materials holds the promise …
February 01, 2020
The interplay between antiphase boundaries (APBs), magnetic domain structure and functional properties was investigated in the martensitic state of Ni–Mn–Ga single crystals which …
January 30, 2020
Plant nanobiotechnology has the potential to revolutionize agriculture. However, the lack of effective methods to deliver nanoparticles (NPs) to the precise locations in plants where they …
January 29, 2020
With global pressures to decarbonize heavy industries, the steelmaking industry has turned towards alternative ironmaking routes to reduce carbon emissions. Direct reduced iron (DRI)
January 22, 2020
This paper examines the consistency between experiments and thermodynamic predictions of the modification of non-metallic inclusions by dissolved Ca in liquid Fe-Al alloys. Current …
January 02, 2020
A semi-empirical model is developed to quantitatively characterize electrode heterogeneities over the micro- and mesoscales, specifically between the relationship of the mean-squared …
January 01, 2020
Serial sectioning and electron backscatter diffraction were used to image the three-dimensional microstructures of Mg alloy AZ31B deformed in tension and compression along sample …
December 10, 2019
In this work, we have investigated a hierarchical CuO-derived inverse opal (CuO-IO) catalyst with high CO selectivity up to 80–90% and minimal H2 evolution at moderate potentials for …
December 01, 2019
A new approach is proposed for the indexing of electron back-scattered diffraction (EBSD) patterns. The algorithm employs a spherical master EBSD pattern and computes its cross-…
December 01, 2019
The concentration and chemical bonding state of carbon in direct-reduced iron (DRI) might affect DRI melting temperature and rate. The effects of carbon bonding state and …
December 01, 2019
Because of interfacial and surface tension, micron-sized liquid oxide droplets are expected to change from spherical (when fully immersed in liquid steel) to lens shape on top of steel. …
November 21, 2019
… MCF-677785. This work was performed, in part, at the Nanoscale Fabrication and Characterization Facility, a laboratory of the Gertrude E. and John M. …
November 18, 2019
Combinatorial substrate epitaxy (CSE) was used to study the orientation relationships (ORs) and polytypic stability of AEMnO 3 (AE = Ca, Sr) thin films grown on polycrystalline SrMnO 3 …
November 08, 2019
We demonstrate the formation of metastable Néel-type skyrmion arrays in Pt/Co/Ni/Ir multi-layers at zero-field following the ex situ application of an in-plane magnetic field using Lorentz …
November 01, 2019
By mapping grain orientations on parallel serial sections of a SrTiO 3 ceramic, it was possible to reconstruct three‐dimensional orientation maps containing more than 3000 grains. The …
October 31, 2019
This paper describes a new discrete method for inverting X-ray pole figures to estimate the orientation distribution function (ODF). The method employs the equal-volume `cubochoric' …
October 30, 2019
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785 Informed signed consent was obtained from DL …
October 24, 2019
… The authors also acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. …
October 23, 2019
A distribution of grain boundary curvature as a function of five independent crystallographic parameters is proposed and tested on some simple geometries. The results show that the …
October 15, 2019
Iron ore pellets prepared from magnetite concentrate are strengthened by oxidation of magnetite to hematite during pellet firing. In the present work, hematite whiskers were observed to …
October 15, 2019
Magnetocaloric refrigeration offers more energy efficiency than conventional gas compression refrigeration by up to 20%, and has the additional advantage of being environmentally …
October 11, 2019
Nanocrystalline tin sulfide (SnS) thin films were deposited by electron-beam evaporation at growth temperatures ranging from room temperature to 300 C and characterized prior to and …
October 11, 2019
I also acknowledge the use of Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. This work was also supported in part by a CMU
October 01, 2019
… MCF-677785. The work of SS was performed partially under the auspices of the US Department of Energy at Lawrence Livermore National Laboratory under contract DE-AC52-07-N-…
October 01, 2019
In the future, Von Neumann and neuromorphic computing architectures will be made more energy efficient by incorporating novel memory technologies in between main memory and
September 26, 2019
Controlling material properties at the nanoscale is a critical enabler of high performance electronic and photonic devices. A prototypical material example is VO 2 , where a structural …
September 04, 2019
… I also acknowledge the use of the Materials Charac- terization Facility at CMU supported by grant MCF-677785. And to all of those who have supported me along the way, thank you. …
September 03, 2019
Automotive fuel cells can suffer from cell voltage reversals because of hydrogen fuel starvation at the anode, which can be exacerbated by subfreezing temperatures because of …
August 31, 2019
Dislocation contrast in the SEM, as observed through electron channelling contrast imaging (ECCI), is commonly treated analogously to the contrast in the TEM. This perception is …
August 30, 2019
Electromagnetic (EM) fields can trigger a range of surprising responses in materials. Microwave radiation (MWR), a type of EM field in the frequency range of 0.3–300 GHz, can lower …
August 23, 2019
Microstructure and texture evolution was studied in a Al 0.25 CoCrFeNi high-entropy alloy after cold work and subsequent isochronal annealing treatments. The alloy was synthesized …
August 20, 2019
Graphene is a valuable material in biomedical implant applications due to its mechanical integrity, long-range order, and conductivity; but graphene must be chemically modified to …
August 19, 2019
Ultrahigh carbon steels (UHCS) containing 1 wt pct Cr (1Cr UHCS) were heat treated at 1073 K, 1173 K, or 1243 K (800 C, 900 C, or 970 C) for durations of 5 minutes up to 24 hours to …
August 01, 2019
Cell-cell communication plays a pivotal role in coordination and function of biological systems. Three-dimensional (3D) spheroids provide venues to explore cellular communication for …
August 01, 2019
… acknowledge an ONR Vannevar Bush Faculty Fellowship (N00014-16-1-2821), and the computational resources of the Materials Characterization Facility at CMU, grant MCF-677785. …
August 01, 2019
Chiral spin textures, such as Skyrmions and chiral domain walls, have garnered a great deal of attention for use in future spintronic devices. These textures are stabilized by the …
August 01, 2019
Scanning Transmission Electron Microscopy (STEM) is a powerful tool for characterizing materials. One method for characterization of materials by STEM is the comparison of simulated …
July 17, 2019
Solid electrolytes are considered to be key components for next-generation lithium metal-based rechargeable batteries. However, to implement a solid electrolyte with lithium metal still …
July 15, 2019
This paper reports on the experimental measurements of magnetic domain wall (DW) widths by Lorentz transmission electron microscopy in Ni-Mn-Ga ferromagnetic shape memory …
July 01, 2019
SrTiO 3 polycrystalline ceramics with polished surfaces are annealed at 1250 C in air. This treatment causes the flat surfaces to break up into facets meeting at sharp edges and corners. …
June 30, 2019
To examine the impact of charge protocol and temperature on Li-ion cell degradation, commercial 18650 Li-ion cells with NCA/C chemistry are cycled deeply1000 times at either 25 C …
June 20, 2019
I also acknowledge the use of Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The use of Advanced Photon Source supported by US
June 05, 2019
Plant nanobiotechnology promises transformative solutions to the most vexing problems threatening global food security, eg drought, disease, and soil nutrient deficiencies. However,
June 01, 2019
In this paper, we report Lorentz Transmission Electron Microscopy (LTEM) observations of magnetic domain structures in a near-eutectoid Co 40 Pt 60 alloy. The crystallographic …
June 01, 2019
We demonstrate that Plasma Dual Beam focused ion beam (PFIB) milling can be used for high-resolution three-dimensional chemical study of a single non-metallic inclusion in steel. A …
May 24, 2019
This project links properties and performance in as-cast condition for advanced high strength steel (AHSS) by comparing silicon content and microstructure to mechanical properties.
May 22, 2019
Undesirable condenser tube leaks frequently occur in power plants, resulting in reduced power output, increased burden on downstream systems, and substantial revenue losses. …
May 17, 2019
Dictionary indexing of electron back-scatter patterns was recently proposed as an alternative to the commercially available indexing packages. In this tutorial paper, we describe in …
May 16, 2019
Nanoenabled foliar-applied agrochemicals can potentially be safer and more efficient than conventional products. However, limited understanding about how nanoparticle properties …
May 15, 2019
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. We are also grateful for support of this work by …
May 10, 2019
Current artificial lungs fail in 1–4 weeks due to surface-induced thrombosis. Biomaterial coatings may be applied to anticoagulate artificial surfaces, but none have shown marked long-…
May 07, 2019
The effects of post-build heat-treatments on the microstructure, phase formation, recrystallization behavior, and mechanical properties of laser powder bed additively manufactured …
May 01, 2019
Soft, elastomeric, non‐tacky polymer networks are synthesized by reversible deactivation radical polymerization (RDRP). First, the pristine, structurally tailored and engineered …
April 29, 2019
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. The APT and electron microscopy …
April 26, 2019
… MCF-677785 and the electron microscopy facilities at Oak Ridge National Laboratory's Center for Nanophase Materials Sciences, which is a US Department of Energy, Office of …
April 17, 2019
We present a general theory of electron scattering from both 2D and 3D quasicrystals, applicable to both transmission (forescatter) and scanning (backscatter) geometries. Specifically, …
April 10, 2019
Damaged cartilage does not readily heal and often requires surgical intervention that only modestly improves outcomes. A synthetic material that could be injected and covalently …
April 09, 2019
Selective two-electron oxygen reduction reaction (ORR) offers a promising route for hydrogen peroxide synthesis, and defective sp 2 -carbon-based materials are attractive, low-cost …
April 01, 2019
Cold-finger measurements were used to estimate the contact resistance and average thermal conductivity of mold flux films solidified on a water-cooled copper probe. Five industrial …
March 27, 2019
We propose a new methodology for ranking the reflectors used in traditional Hough-based indexing of electron backscatter diffraction (EBSD) patterns. Instead of kinematic X-ray or …
March 26, 2019
… MDG and WCL acknowledge financial support from an ONR/Vannevar Bush Faculty Fellowship program # N00014-16-1-2821 and grant MCF-677785 for use of the computational …
March 01, 2019
The shapes of near-spherical individual powder particles used as additive manufacturing feedstock are analyzed by means of moment invariants in combination with dimensionality …
March 01, 2019
The influence of dew point temperature (DPT) and oxidation time on the selective oxidation of a Fe-0.09C-2.02Mn-0.91Si (wt pct) advanced high-strength steel during the early stages of …
February 27, 2019
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University, supported by the NSF (Grant MCF-677785). DBW acknowledges funding from …
February 22, 2019
Synthetic, resorbable scaffolds for bone regeneration have potential to transform the clinical standard of care. Here, we demonstrate that functional graphenic materials (FGMs) could …
February 15, 2019
Nano-crystalline Ni and Cu films deposited on the r-plane of sapphire (α-Al 2 O 3 ) develop a <1 1 1> fiber-texture upon annealing, in which grains grow up to 300 to 500 times larger …
February 05, 2019
Through the benefit of billions of years of evolution, biology has developed tremendous strategies on how to co-exist in high salinity and water scarce environments. Biologically-…
2018
The reversible electrochemical cycling of sodium ions in several variants of low cost, easy to produce TiP 2 O 7 as the negative electrode material in an aqueous battery is demonstrated …
November 15, 2018
The demand for real-time sensors in harsh environments at elevated temperature is significant and increasing. In this manuscript, the chemical and temperature sensing using the …
November 09, 2018
The spontaneous polarization of domains in ferroelectric materials has been used to spatially separate photogenerated electrons and holes, reducing recombination and thereby …
November 08, 2018
Structurally tailored and engineered macromolecular (STEM) gels are polymer networks containing latent initiator sites available for postsynthesis modifications. The STEM gels …
November 05, 2018
We examine magnetic domain patterns in symmetric [ Co / Ni ] M and asymmetric [ Pt / ( Co / Ni ) M / Ir ] N multi-layers by using Fresnel mode Lorentz transmission electron microscopy (…
November 02, 2018
This work aims to clarify the rate and mechanism of MgO pickup by alumina inclusions and the effect of oxide impurities in MgO crucibles on this transformation. Two MgO crucibles from …
November 01, 2018
Grain size and size distribution reduction in L10 FePt granular thin film is becoming critical to increase the areal storage density and realize the full potential of heat-assisted magnetic …
September 24, 2018
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785. The assistance and support of Arconic are …
September 21, 2018
Though electrochemical deionization technologies have been widely explored for brackish water desalination and selective ion removal, their sustained performance in the presence of …
September 13, 2018
The use of polydopamine nanomembranes as a conformal coating with reversible adhesion is demonstrated. Here, two approaches to achieve reversible adhesion in polydopamine …
September 01, 2018
When particulate photocatalysts promote a reaction, the overall reaction rate is limited by the constraint that the photoreduction and photooxidation reactions must occur on the surface …
September 01, 2018
In this paper, detailed materials characterization analyses on the interaction between FeO x nanoparticles infiltrated onto a La 0.8 Sr 0.2 MnO 3 (LSM) backbone cathode in a solid oxide …
August 09, 2018
Low‐carbon steel is an important commodity material, but poor corrosion resistance has a strong impact on its service life, which leads to great loss in economic development. Polymer …
August 05, 2018
Utilization of nanoparticles (NP) in agriculture as fertilizers or pesticides requires an understanding of the NP properties influencing their interactions with plant roots. To evaluate the …
August 01, 2018
In the study of materials science and engineering, the structure and symmetry of a material play an important role in the resulting properties and performance; in addition, the distribution …
August 01, 2018
First order coupled partial differential equations are ubiquitous in science and engineering and form the basis for a number of mathematical models. Examples range from economic …
August 01, 2018
Defect image contrast simulations for TEM modalities have a long tradition and have played a crucial role in interpreting contrast features observed in electron micrographs. The …
August 01, 2018
Pseudo-symmetry (PS) issues arise in the analysis of electron back-scatter diffraction (EBSD) patterns when similarities between patterns for different crystal orientations cause the …
August 01, 2018
Transmission Electron Microscopy is a powerful technique for the characterization of defects in crystalline materials, operating in either the conventional parallel-beam modality or the …
August 01, 2018
Oxide dispersion strengthened (ODS) alloys are composites with a high-density dispersion of oxides throughout a metallic matrix. Oxide dispersion strengthening is important for …
August 01, 2018
In analytical scanning transmission electron microscopy (STEM), it is often important to know the local absolute thickness of the thin specimen, especially when it comes to X-ray …
August 01, 2018
Oxide dispersion strengthened (ODS) alloys are desirable for high temperature applications, as dispersed oxide particles within the metal matrix act as barriers to dislocation motion and …
August 01, 2018
Recent years have seen a significant increase in the use of electron diffraction modalities in a scan-ning electron microscope (SEM) to cover large areas of complex microstructures, …
August 01, 2018
Chiral magnetic structures, such as Skyrmions, have attracted a great deal of attention in recent years due to the efficiency with which they can be manipulated by electric current. These …
August 01, 2018
Chiral magnetic structures, such as Skyrmions, have attracted a great deal of attention in recent years due to the efficiency with which they can be manipulated by electric current. These …
July 24, 2018
Surface engineering is a critical technique for improving the performance of lithium-ion batteries (LIBs). Here, we introduce a novel vapor-based technique, namely, chemical vapor …
July 20, 2018
We demonstrate the capability of a novel Electron Backscatter Diffraction (EBSD) dictionary indexing (DI) approach by means of orientation mapping of a highly deformed graded …
July 01, 2018
A new, more accurate approach to estimate thermal properties of mould fluxes is presented, based on the cold-finger technique. This new approach aims to circumvent the dominant …
July 01, 2018
We present a method for embedding integrated circuit chips in parylene neural probes where Anisotropic Conductive Film (ACF) electrically and physically connects the chip to the …
June 18, 2018
The distribution of tantalum and oxygen ions in electroformed and/or switched TaO x -based resistive switching devices has been assessed by high-angle annular dark-field microscopy, …
June 01, 2018
The magnetization configuration of a novel nano-chessboard structure consisting of L1 0 and L1 2 phases in a Co 40 Pt 60 alloy is investigated using Lorentz transmission electron …
May 25, 2018
Oxidative chemical vapor deposition (oCVD) is a versatile technique that can simultaneously tailor properties (eg, electrical, thermal conductivity) and morphology of polymer films at the …
May 21, 2018
This study documents laboratory-scale observations of reactions between Fe-Al alloys (0.1 to 2 wt pct Al) with slags and refractories. Al in steels is known to reduce oxide components in …
May 14, 2018
The aim of this study is to utilize principal component analysis (PCA), clustering methods, and correlation analysis to condense and examine large, multivariate data sets produced from …
May 07, 2018
In this work we examine some observations made using high-temperature confocal scanning laser microscopy (HT-CSLM) during selective oxidation experiments. A plain carbon steel …
May 02, 2018
During high-temperature confocal scanning laser microscopy (HT-CSLM) of liquid steel samples, thermal Marangoni flow and rapid mass transfer between the sample and its …
May 01, 2018
The dihedral angles at grain boundary thermal grooves in SrTiO 3 were measured and used to determine the relative grain boundary energy at several temperatures where the grain …
May 01, 2018
Metal Additive Manufacturing (AM) provides the means to fabricate complex metallic parts with reduced time to market and material waste and improved design freedom. Industries with
April 30, 2018
Transmission Kikuchi diffraction (TKD) has been gaining momentum as a high resolution alternative to electron back-scattered diffraction (EBSD), adding to the existing electron …
April 27, 2018
… Mellon University supported by grant BNL-78657879 and use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. …
April 21, 2018
Grain-to-grain Curie temperature (T c) variation in media reduces the signal-to-noise ratio due to its contribution to the transition jitter noise, especially when the average grain size is …
April 21, 2018
Grain-to-grain Curie temperature (Tc) variation in the media reduces signal-to-noise ratio due to its contribution in transition jitter noise, especially when average grain size is pushing …
April 06, 2018
In this study, two different melting methods were used to investigate effects of Nb modification on microstructure in ultrahigh carbon steel (UHCS). Nb-free and Nb-modified UHCS …
April 05, 2018
In an electron backscatter diffraction pattern (EBSP), the angular distribution of backscattered electrons (BSEs) depends on their energy. Monte Carlo modeling of their depth and …
April 01, 2018
Studies have shown that nanocrystalline (nc)-metals can effectively absorb point defects generated by high energy irradiation and reduce the damage caused by such radiation.
March 20, 2018
Heteroatom-doped nanoporous carbons (NPCs) have been extensively investigated in multiple energy and environmental applications, including electrode materials for batteries, …
March 07, 2018
Heteroepitaxial films of Ga O were grown on c-plane sapphire (0001). The stable phase β-Ga O was grown using the metalorganic chemical vapor deposition technique, regardless of …
February 01, 2018
We introduce an extension of the Darwin–Howie–Whelan (DHW) equations for the case of coherent L1 2 precipitates in an FCC matrix. The equations are similar in form to the …
February 01, 2018
… The support from CMU CISR industrial partners (especially ESAB-CMU PITA) and from Grant MCF677785 should be gratefully thanked as well for promoting the advancement of the …
January 27, 2018
The conformal nature of in situ polymerization of adhesive dopamine molecules permits the strong underwater adhesion between polydopamine (PDA) nanomembranes and the target …
2017
SrTiO3(110) orientated crystals have been heated to temperatures between 1000 C and 1200 C in air, alone or in the presence of powder reservoirs of TiO2 or Sr3Ti2O7. In these …
2017
Two of three levels of hierarchical ferroelastic domains of γ-WO3 ceramics are shown to be piezo-responsive (polar) for surfaces of any general orientation. Importantly, the surface …
2017
It is well-known that the fatigue behavior of cast aluminum alloy parts is largely determined by internal defects, particularly pores and inclusions. In this work, it is shown that such …
December 21, 2017
Tin(II) monosulfide (SnS) is a layered, anisotropic material that is of interest as a two-dimensional semiconductor for opto-electronic, thermoelectric, and piezoelectric applications. In this …
December 01, 2017
Two approaches are proposed for the refinement of electron diffraction pattern indexing. The approaches require two basic ingredients: an accurate physics-based forward model and …
December 01, 2017
MgO whiskers have a variety of potential applications like nanoelectronics, sensing devices and to improve mechanical properties of high temperature superconductors like MgB 2 , and …
November 06, 2017
The chemical excess at high angle grain boundaries in yttrium doped alumina was characterized using transmission electron microscopy and energy dispersive spectroscopy. The …
October 31, 2017
This work focuses on integrating crystal plasticity based deformation models and machine learning techniques to gain data driven insights about the microstructural properties of …
October 17, 2017
Lightweight open-cell foams that are simultaneously superelastic, possess exceptionally high Young’s moduli (Y), exhibit ultrahigh efficiency, and resist fatigue as well as creep are …
October 01, 2017
The efficacy of the dictionary approach to Electron Back-Scatter Diffraction (EBSD) indexing was evaluated through the analysis of the error in the retrieved crystal orientations. EBSPs …
October 01, 2017
This paper applies the three-dimensional visualization techniques explored theoretically by Callahan, Echlin, Pollock, Singh & De Graef [J. Appl. Cryst. (2017), 50, 430–440] to a series …
September 12, 2017
The promise of using electromagnetic (EM) fields for low temperature materials synthesis is limited by our ability to structurally characterize these materials, which are often …
September 04, 2017
Spatially selective surface photochemical reactivity provides charge and half-reaction separation on a surface of a single material, which generally leads to improved photocatalytic …
September 01, 2017
… MCF-677785. The BGI portion of this work was partially supported by the German Research Foundation (DFG) with grant no. MA 6278/3-1 to KMHM was supported through the project “…
August 17, 2017
This study reports on the growth and characterization of three different phases – α, β, and ε – of Ga 2 O 3 epitaxial layers grown on (001) sapphire substrates at 650 C. The stable β-…
August 16, 2017
This paper explores the FeCoNiCuMn high-entropy alloy system, where small departures from equiatomic composition have yielded technologically interesting 300-K Curie …
August 01, 2017
We demonstrate that the surface topography of a sample can be reconstructed from electron backscatter diffraction (EBSD) patterns collected with a commercial EBSD system. This …
August 01, 2017
This dissertation investigates microstructure/property relations in ultrahigh carbon steel (UHCS) with the aim of improving toughness while retaining high hardness. Due to high C
July 03, 2017
In recent years, the demand for emerging electronic devices has driven efforts to develop electrochemical capacitors with high power and energy densities that can preserve …
July 01, 2017
EMsoft is an open source package for the simulation of electron diffraction patterns and images for both SEM and TEM modalities. The package has been under development since the …
July 01, 2017
Determination of the crystal orientation from a diffraction pattern falls in the general class of inverse problems, in which one uses the results of actual observations to infer parameter …
July 01, 2017
Lorentz Transmission Electron Microscopy (LTEM) is a technique used to image and characterize magnetic domains and magnetic domain walls. In LTEM mode, since the sample sits …
July 01, 2017
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785.Google Scholar …
July 01, 2017
Truly nanostructured materials pose a significant spatial resolution challenge to the conventional Electron Backscatter Diffraction (EBSD) characterization technique. Nevertheless, the …
July 01, 2017
Defects in crystalline materials can have a large impact on performance and properties. These defects, including misfit dislocations that emerge during epitaxial growth, have …
July 01, 2017
Fine details of crystalline structure, including local lattice parameters, shifts due to strain, and compositional variation, can be investigated by analyzing the positions of higher-order …
June 15, 2017
Combinatorial substrate epitaxy (CSE) is used to investigate polymorph competition between metastable scrutinyite (α-PbO 2 ) structured (s-) and stable rutile structured (r-) SnO 2 …
June 06, 2017
Heat treatment of Type 304 stainless steel in the range of 1273 K (1000 C) to 1473 K (1200 C) can transform manganese silicate inclusions to manganese chromite (spinel) inclusions. …
June 02, 2017
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. We are grateful for thermal conductivity …
June 01, 2017
In the current study, a series of thermomechanical routes were used to produce different microstructures (ie, ferrite and martensite) in low-carbon low alloy steels. The five-parameter …
May 30, 2017
Three-dimensional (3D) distributions of microstructural features in electrodes of solid oxide fuel cells (SOFCs) directly influence their electrochemical performance. Commercial grade …
May 30, 2017
A numerical reaction-and-transport model was constructed to simulate local electrochemistry in electrode microstructures of solid oxide fuel cells. The model computes local distributions …
May 10, 2017
Two of three levels of hierarchical ferroelastic domains of γ-WO 3 ceramics are shown to be piezo-responsive (polar) for surfaces of any general orientation. Importantly, the surface …
May 05, 2017
Schottky diodes based on ( 2 01) β-Ga 2 O 3 substrates and (010) β-Ga 2 O 3 homoepitaxial layers were formed using five different Schottky metals: W, Cu, Ni, Ir, and Pt. Based on a …
May 01, 2017
Polydopamine (PDA) is a complex biomimetic material exhibiting advantageous properties of both melanin polymers and biological adhesives. These concomitant features have …
May 01, 2017
The electrodes in solid oxide fuel cells ( SOFC s) consist of three phases interconnected in three dimensions. The volume needed to describe quantitatively such microstructures …
May 01, 2017
Currently, the most common recording media used for heat assisted magnetic recording is granular L1 0 based FePt-C directly deposited on a highly textured polycrystalline MgO …
May 01, 2017
Parts made out of titanium alloys demonstrate anisotropic mechanical properties when manufactured by electron beam melting, an emerging additive manufacturing technique. …
April 24, 2017
The grain boundary character distribution (GBCD) of a 100-nm-thick Al thin film was measured as a function of annealing time by transmission electron microscopy-based crystal …
April 01, 2017
Nine metals (Ti, In, Ag, Sn, W, Mo, Sc, Zn, and Zr) have been investigated as electrical contacts to n-type single-crystal β-Ga 2 O 3 substrates as a function of annealing temperature up …
April 01, 2017
Additive manufacturing (AM) has experienced remarkable growth in the past decade with applications in both rapid prototyping and rapid manufacturing for functional end-usable parts.
April 01, 2017
Crystallographic textures are commonly represented in terms of Euler angle triplets and contour plots of planar sections through Euler space. In this paper, the basic theory is provided …
March 17, 2017
… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785. We are grateful for thermal conductivity …
March 14, 2017
The grain boundaries (GBs) present in polycrystalline materials are important with respect to materials behaviour and properties. During the transient stage of oxidation, the higher GB …
March 09, 2017
Lightweight, superelastic foams that resist creep and fatigue over a broad temperature range are being developed as structural and functional materials for use in numerous diverse …
February 21, 2017
We have examined spheroidization and coarsening of cementite in an initially pearlitic 2C-4Cr ultrahigh carbon steel containing a cementite network. Coarsening kinetics of …
February 20, 2017
High-temperature annealing in air is used to produce SrTiO 3 (111) surfaces with two types of atomically flat terraces: those that promote photoanodic reactions and those that promote …
February 01, 2017
This work investigated the use of FactSage macros to simulate steel–slag and steel–inclusion reaction kinetics in silicon-manganese killed steels, and predict oxide inclusion …
February 01, 2017
Atomic force microscopy was used to measure the dimensions of grain‐boundary thermal grooves on the surfaces of Al 2 O 3 , 100 ppm Y‐doped Al 2 O 3 , and 500 ppm Y‐doped Al 2 …
February 01, 2017
The dictionary-based approach to the indexing of diffraction patterns is applied to electron channeling patterns (ECPs). The main ingredients of the dictionary method are introduced, …
January 20, 2017
Photoelectrochemical conversion of solar energy is explored for many diverse applications but suffers from poor efficiencies due to limited solar absorption, inadequate charge carrier …
January 19, 2017
Lightweight, flexible piezoresistive materials with wide operational pressure ranges are in demand for applications such as human physical activity and health monitoring, robotics, and …
January 15, 2017
The distribution of grain boundary curvatures as a function of five independent crystallographic parameters is measured in an austenitic and a ferritic steel. Both local curvatures and …
January 09, 2017
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785. The assistance and support of Alcoa is …
January 03, 2017
The porosity observed in additively manufactured (AM) parts is a potential concern for components intended to undergo high-cycle fatigue without post-processing to remove such …
January 03, 2017
The porosity observed in additively manufactured (AM) parts is a potential concern for components intended to undergo high-cycle fatigue without post-processing to remove such
2016
Resistive Random Access Memory (RRAM) has emerged as a leading candidate for nonvolatile memory storage. RRAM devices typically consist of a metal/insulator/metal (MIM)
December 22, 2016
The facile preparation of conformal polydopamine (PDA) films on broad classes of materials has prompted extensive research into a wide variety of potential applications for PDA. The …
December 01, 2016
The tethering of ligands to nanoparticles has emerged as an important strategy to control interactions and organization in particle assembly structures. We demonstrate that ligand …
November 02, 2016
… Research (AFOSR) MURI program (contract # FA9550-12-1-0458) as well as the computational facilities of the Materials Characterization Facility at CMU under grant # MCF-677785. …
October 24, 2016
Fabrication processes of single-layer and multilayer graphene (SLG and MLG, respectively) that are simple yet controllable are actively sought-after to realize many graphene-based …
October 24, 2016
Fabrication processes of single-layer and multilayer graphene (SLG and MLG, respectively) that are simple yet controllable are actively sought-after to realize many graphene-based
September 07, 2016
Aluminum deoxidized steel tends to form solid inclusions (alumina, spinel, partially modified calcium aluminates). These solid inclusions are known to present challenges during casting…
September 07, 2016
This work investigates the effect of slag composition in steel-slag and steel-inclusion reaction kinetics in silicon-manganese killed steels by using FactSage macros to simulate and …
August 25, 2016
This study showed that MgO inclusions can be stable in liquid iron with elevated Al and it illustrated an important role of vaporization in the evolution of inclusions. Previous studies have …
August 01, 2016
High-resolution (or “cross-correlation”) electron backscatter diffraction analysis (HR-EBSD) utilizes cross-correlation techniques to determine relative orientation and distortion of an …
July 26, 2016
We present data on the filament size and temperature distribution in Hf 0.82 Al 0.18 O x -based Resistive Random Access Memory (RRAM) devices obtained by transient thermometry …
July 15, 2016
The background of an electron backscattered diffraction pattern contains quantitative surface topography data. We propose a new approach to extract this topography from the location …
July 08, 2016
SrTiO 3 (111) surfaces have been heated in air at 1250 C, either alone or with reservoirs of TiO 2 and SrTiO 3 powders. The surface structure and properties were measured by atomic …
July 01, 2016
The orientation dependence of the visible‐light stimulated photochemical reduction of aqueous Ag + on polycrystalline hematite Fe 2 O 3 was determined by observing the relative …
July 01, 2016
… The authors acknowledge the support by an NSF grant, DMR-1306296 and use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. …
July 01, 2016
Defect analysis using a Scanning Electron Microscope (SEM), commonly known as Electron Channeling Contrast Imaging (ECCI), has received much attention in the recent past. …
June 13, 2016
Calculated frequency distributions of atom probe tomography reconstructions (∼ 80 nm field of view) of very thin Al x Ga 1− x N (0.18≤ x≤ 0.51) films grown via metalorganic vapor …
June 01, 2016
Commercially pure α-Ti was serial sectioned using a Xe plasma focused ion beam (PFIB) scanning electron microscope and orientation maps were obtained on the parallel layers by …
May 17, 2016
The effect of polymer conjugation on the interactions between proteins in solution is evaluated by systematic analysis of the second virial coefficient (A 2 ) for the particular example of …
April 17, 2016
We investigate RRAM thermal dynamics during resistive switching and endurance failure by using transient thermometry and HRTEM analysis. The filament size was estimated to ~1 …
April 13, 2016
The effect of polymer modification on the deformation characteristics and processibility of particle assembly structures is analyzed as a function of particle size and degree of …
April 01, 2016
… The authors acknowledge use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF677785. …
February 24, 2016
Photocatalysts are being extensively investigated to convert renewable solar energy into chemical energy but suffer from high costs or low efficiencies. We report on the development of …
February 14, 2016
We present a batched dynamic algorithm built on top of PyTorch and PyKeOps for pixel-wise image sampling, with no need for offline training. Non-maximal suppression is used to filter …
October 01, 2014
Recent progress in micro-scale three-dimensional (3D) characterization techniques such as focused ion beam–scanning electron microscopy (FIB-SEM) and X-ray nanotomography
February 01, 1983
The author acknowledges use of the Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. This research used resources of the Advanced
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Surface segregation under UHV conditions was mapped out across CuxAgyAu1-xy ([[EQUATION]]) composition space and over a temperature range of 500–800 K. E-beam deposition …
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Additive manufacturing (AM) of tungsten offers a route to produce complex components for high-temperature applications; however, tungsten’s high thermal conductivity, intrinsic …
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… The authors acknowledge the use of the computing workstation at Materials Characterization Facility at Carnegie Mellon University supported by grant MCF-677785. This work was also …
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… The authors acknowledge the use of the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785. The views expressed herein do not …