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Materials

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Displaying 176 - 200 of 2343

Water-Enhanced CO2 Capture with Molecular Salt Sodium Guanidinate

June 3, 2024
Author(s)
Hayden Evans, Marcus Carter, Wei Zhou, Taner N. Yildirim, Craig Brown, Hui Wu
Solid-state amine absorbent materials, including those containing guanidine derivatives, have received tremendous attention as the world combats the challenges of climate change. Although these materials are attractive for their selective CO2 capture

Dealloyed Pt74Ni26 and Pt26Ni74 Electrodeposited Thin Film Electrocatalysts for Oxygen Reduction

May 30, 2024
Author(s)
Carlos Hangarter, Eric Rus, Yihua Liu, Jaw Wook Shin, Vladimir Oleshko, Hyun Wook Ro, Russell Composto, Christopher Soles, Joseph A. Dura, Gery R. Stafford, Leonid Bendersky, Thomas P. Moffat
Pt100-xNix alloys are among the most active binary alloys for electrocatalysis of the oxygen reduction reaction (ORR) in PEM fuel cells. Electrodeposition and microstructure of thin films close to Pt75Ni25 and Pt25Ni75 stoichiometry are described and their

An autonomous design algorithm to experimentally realize three-dimensionally isotropic auxetic network structures without compromising density

May 29, 2024
Author(s)
Meng Shen, Marcos Reyes-Martinez, Ami Ahure Powell, Mark Iadicola, Abhishek Sharma, Fabian Bylehn, Nidhi Pashine, Edwin P. Chan, Christopher Soles, Heinrich Jaeger, Juan de Pablo
Auxetic materials have a negative Poisson's ratio and are of significant interest in applications that include impact mitigation, membrane separations and biomedical engineering. While there are numerous examples of structured materials that exhibit

Reproducible graphene synthesis by oxygen-free chemical vapour deposition

May 29, 2024
Author(s)
Jacob Amontree, Xingzhou Yan, Christopher DiMarco, Pierre Levesque, Tehseen Adel, Jordan Pack, Madisen Holbrook, Christian Cupo, Zhiying Wang, Dihao Sun, Adam Biacchi, Charlezetta Stokes, Kenji Watanabe, Takashi Taniguchi, Cory Dean, Angela R. Hight Walker, Katayun Barmak, Richard Martel, James Hone
The demonstration of large-scale graphene synthesis on Cu by chemical vapor deposition (CVD) has led to enormous interest worldwide over the past 14 years. The graphene CVD process involves flow of a carbon feedstock (typically methane) over a Cu surface

In situ observation of the multistep process of cold sintering

May 15, 2024
Author(s)
Russell Maier
A compact cold sintering stage was constructed to densify ceramic samples in capillary tubes for the purpose of conducting in situ experiments designed to elucidate fundamental cold sintering mechanisms. The stage was used to successfully densify samples

JARVIS-Leaderboard: A Large Scale Benchmark of Materials Design Methods

May 7, 2024
Author(s)
Kamal Choudhary, Daniel Wines, Kevin Garrity, aldo romero, Jaron Krogel, Kayahan Saritas, Panchapakesan Ganesh, Paul Kent, Pascal Friederich, Vishu Gupta, Ankit Agrawal, Pratyush Tiwary, ichiro takeuchi, Robert Wexler, Arun Kumar Mannodi-Kanakkithodi, Avanish Mishra, Kangming Li, Adam Biacchi, Francesca Tavazza, Ben Blaiszik, Jason Hattrick-Simpers, Maureen E. Williams
Reproducibility and validation are major hurdles for scientific development across many fields. Materials science in particular encompasses a variety of experimental and theoretical approaches that require careful benchmarking. Leaderboard efforts have

Interfacial Magnetic Characteristics of Nearly Compensated Gadolinium Iron Garnet

May 4, 2024
Author(s)
Karthik Srinivasan, Alexander Grutter, Thomas Gage, P. Quarterman, Christy Kinane, Andrew Caruana, Guichuan Yu, Javier Garcia-Barriocanal, Sean Langridge, Bethanie Stadler
Reports on spin Hall magnetoresistance, magnonic spin currents from thermal gradients, and spin transfertorque magnetic random-access memory using compensated ferrimagnets largely discuss bulk magnetization but lack consideration of depth profiles or

An Interlaboratory Study for Assessing Repeatability and Reproducibility of the Data Generated by Rotating Drum Powder Rheometers Part 1: Granudrum

May 3, 2024
Author(s)
Vipin Tondare, Justin Whiting, Adam L. Pintar, Shawn P. Moylan, Aurelien Neveu, Filip Francqui
The National Institute of Standards and Technology (NIST) organized an interlaboratory study to assess the repeatability and reproducibility of the data generated by two commercially available rotating drum powder rheometers namely, Granudrum and

Thermoreversible gels of hollow silica nanorod dispersions

May 1, 2024
Author(s)
Haesoo Lee, KHUSHBOO SUMAN, David Moglia, Ryan Murphy, Norman Wagner
Colloidal suspensions of anisotropic particles are ubiquitous in particle-based industries. Consequently, there is a need to quantify the effects of particle shape on equilibrium phases and kinetic state transitions, particularly at lower aspect ratios (L

A reproducibility study of graph neural networks for materials property prediction

April 30, 2024
Author(s)
Kangming Li, Brian DeCost, Kamal Choudhary, Jason Hattrick-Simpers
Use of machine learning has been increasingly popular in materials science as data-driven materials discovery is becoming the new paradigm. Reproducibility of findings is paramount for promoting transparency and accountability in research and building

Microstructural effects on the rotating bending fatigue behavior of Ti-6Al-4V produced via laser powder bed fusion with novel heat treatments

April 30, 2024
Author(s)
Nicholas Derimow, Jake Benzing, David Newton, Chad Beamer, Ping Lu, Frank DelRio, Newell Moser, Orion Kafka, Ryan Fishel, Lucas Koepke, Chris Hadley, Nik Hrabe
The rotating bending fatigue (RBF) behavior (fully reversed, R = -1) of additively manufactured (AM) Ti-6Al-4V alloy produced via laser powder bed fusion (PBF-L) was investigated with respect to different microstructures achieved through novel heat

Skyrmion Lattice Formation and Destruction Mechanisms Probed with TR-SANS

April 30, 2024
Author(s)
W. L. N. C. Liyanage, Nan Tang, Rebecca Dally, Lizabeth J. Quigley, C. Buchanan, Guo-Jiun Shu, Nicholas Butch, Kathryn Krycka, Markus Bleuel, Julie A. Borchers, Debeer-Schmitt Lisa, Dustin Gilbert
Magnetic skyrmions are topologically protected, nanoscale whirls of the spin configuration that tend to form hexagonally ordered arrays. As a topologically non-trivial structure, the nucleation and annihilation of the skyrmion, as well as the interaction

Operando XPS for Plasma Process Monitoring: A Case Study on the Hydrogenation of Copper Oxide Confined under h-BN

April 29, 2024
Author(s)
Trey Diulus, Andrew Naclerio, J. Anibal Boscoboinik, Ashley Head, Evgheni Strelcov, Piran Kidambi, Andrei Kolmakov
We demonstrate that ambient pressure x-ray photoelectron spectroscopy (APXPS) can be used for in situ studies of dynamic changes in surface chemistry in a plasma environment. Hexagonal boron nitride (h-BN) was used in this study as a model system since it

Orphan High Field Superconductivity in Non-Superconducting Uranium Ditelluride

April 19, 2024
Author(s)
Corey Frank, Sylvia Lewin, Gicela Saucedo Salas, Peter Czajka, Ian Hayes, Hyeok Yoon, Tristin Metz, Johnpierre Paglione, John Singleton, Nicholas Butch
Reentrant superconductivity is an uncommon phenomenon in which the destructive effects of magnetic field on superconductivity are mitigated, allowing a zero-resistance state to survive under conditions that would otherwise destroy it. Typically, the

Self-Assembly of Hierarchical High-h Fluorinated Block Copolymers with an Orthogonal Smectic-within-Lamellae 3 nm Sub-Lattice and Vertical Surface Orientation

April 16, 2024
Author(s)
Bijal Patel, Hongbo Feng, Whitney Loo, Chad R. Snyder, Christopher Eom, Julia Murphy, Daniel Sunday, Paul Nealey, Dean DeLongchamp
Hierarchical structure-within-structure assemblies offer a route toward increasingly complex and multifunctional materials while pushing the limits of block copolymer self-assembly. We present a detailed study of the self-assembly of a series of
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