Results 71 to 80 of about 46,940 (286)

Atom clusters and vibrational excitations in chemically-disordered Pt357Fe [PDF]

, 2000
Inelastic nuclear resonant scattering spectra of Fe-57 atoms were measured on crystalline alloys of Pt3Fe-57 that were chemically disordered, partially ordered, and L1(2) ordered. Phonon partial density of states curves for Fe-57 were obtained from these
Alp, E. E., Fultz, B., Hu, M. Y., Stephens, T. A., Sturhahn, W., Sutter, J. P., Toellner, T. S.   +6 more
core   +1 more source

Preparation of Tunable Cu−Ag Nanostructures by Electrodeposition in a Deep Eutectic Solvent

ChemElectroChem
The green transition requires new, clean, inexpensive, and sustainable strategies to prepare controllable bimetallic and multimetallic nanostructures. Cu−Ag nanostructures, for example, are promising bimetallic catalysts for different electrocatalytic ...
Elena Plaza‐Mayoral, Kim N. Dalby, Hanne Falsig, Ib Chorkendorff, Paula Sebastián‐Pascual, María Escudero‐Escribano   +5 more
doaj   +1 more source

Composition effects of electrodeposited Cu-Ag nanostructured electrocatalysts for CO2 reduction

iScience
Summary: The electrochemical carbon dioxide reduction (CO2RR) on Cu-based catalysts is a promising strategy to store renewable electricity and produce valuable C2+ chemicals.
Elena Plaza-Mayoral, Valery Okatenko, Kim N. Dalby, Hanne Falsig, Ib Chorkendorff, Paula Sebastián-Pascual, María Escudero-Escribano   +6 more
doaj   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Progress in High-Entropy Alloys [PDF]

JOM, 2013
Strictly speaking, high-entropy alloys (HEAs) refer to single-phase, solid-solution alloys with multiprincipal elements in an equal or a near-equal molar ratio whose configurational entropy is tremendously high. This special topic was organized to reflect the focus and diversity of HEA research topics in the community.
openaire   +3 more sources

Vibrational entropy of L12 Cu3Au measured by inelastic neutron scattering [PDF]

, 1999
The phonon density of states of elemental Au, Cu, and Cu3Au with L12 chemical order were measured by inelastic neutron scattering and used to calculate the vibrational entropy of formation of the ordered compound from the elemental metals.
Bogdanoff, P. D., Fultz, B., Rosenkranz, S.   +2 more
core   +1 more source

Achieving synergistic strength-ductility enhancement in a hierarchical hetero-lamellar AlCoCrFeNi2.1 eutectic high-entropy alloy via facile hot-rolling strategy

Materials & Design
Eutectic high-entropy alloys (EHEAs) have attracted considerable interest due to their superior multifunctional performance. However, the inherent tendency of stress concentration at irregular phase boundaries frequently leads to premature fracture. This
Qidong Ren, Tianxin Li, Hengke Xie, Yuhao Jia, Mingpan Wan, Chaowen Huang, Chaoyi Chen, Junqi Li, Yiping Lu   +8 more
doaj   +1 more source

Effect of Cr content on corrosion behavior of CrMnFeNi high entropy alloys

Cailiao gongcheng, 2022
The effect of Cr content on the microstructure and corrosion resistance of CrxMnFeNi(x=0.8, 1.0, 1.2, 1.5) high entropy alloys was studied by using XRD, SEM/EDS, EBSD and electrochemical testing.
SUN Hui, WU Huibin, ZHANG Youyou, YUAN Rui, ZHANG Zhihui   +4 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source