Vibrational entropy-enhanced magnetocaloric effect in Mn-rich high-entropy alloys

2021 ◽  
Vol 119 (8) ◽  
pp. 084102
Author(s):  
Shuo Huang ◽  
Zhihua Dong ◽  
Esmat Dastanpour ◽  
Valter Ström ◽  
Guocai Chai ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
High Entropy Alloys ◽  
Vibrational Entropy ◽  
High Entropy

scholarly journals Rare-earth high-entropy alloys with giant magnetocaloric effect

2017 ◽  
Vol 125 ◽  
pp. 481-489 ◽  
Author(s):  
Y. Yuan ◽  
Y. Wu ◽  
X. Tong ◽  
H. Zhang ◽  
H. Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Magnetocaloric Effect ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Giant Magnetocaloric Effect

scholarly journals Thermomagnetic properties and magnetocaloric effect of FeCoNiCrAl-type high-entropy alloys

AIP Advances ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 035010 ◽  
Author(s):  
Suok-Min Na ◽  
Paul K. Lambert ◽  
Hyunsoo Kim ◽  
Johnpierre Paglione ◽  
Nicholas J. Jones
Keyword(s):  
Magnetocaloric Effect ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Thermomagnetic Properties

Amorphous microwires of high entropy alloys with large magnetocaloric effect

2018 ◽  
Vol 96 ◽  
pp. 79-83 ◽  
Author(s):  
Wei Sheng ◽  
Jun-Qiang Wang ◽  
Gang Wang ◽  
Juntao Huo ◽  
Xinmin Wang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Amorphous Microwires

High-Entropy Alloys as Catalysts for the CO2 and CO Reduction Reactions

2019 ◽  
Author(s):  
Jack Pedersen ◽  
Thomas Batchelor ◽  
Alexander Bagger ◽  
Jan Rossmeisl
Keyword(s):  
Density Functional ◽  
Rational Design ◽  
Hydrogen Adsorption ◽  
Co Adsorption ◽  
Reduction Reaction ◽  
Supervised Machine Learning ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Co Reduction ◽  
Disordered Alloy

Using the high-entropy alloys (HEAs) CoCuGaNiZn and AgAuCuPdPt as starting points we provide a framework for tuning the composition of disordered multi-metallic alloys to control the selectivity and activity of the reduction of carbon dioxide (CO2) to highly reduced compounds. By combining density functional theory (DFT) with supervised machine learning we predicted the CO and hydrogen (H) adsorption energies of all surface sites on the (111) surface of the two HEAs. This allowed an optimization for the HEA compositions with increased likelihood for sites with weak hydrogen adsorption{to suppress the formation of molecular hydrogen (H2) and with strong CO adsorption to favor the reduction of CO. This led to the discovery of several disordered alloy catalyst candidates for which selectivity towards highly reduced carbon compounds is expected, as well as insights into the rational design of disordered alloy catalysts for the CO2 and CO reduction reaction.

Effect of the structure of vacuum condensates of high entropy alloys of Cr–Fe–Co–Ni–Cu system on their mechanical properties

2020 ◽  
Vol 2020 (4) ◽  
pp. 16-22
Author(s):  
A.I. Ustinov ◽  
◽  
V.S. Skorodzievskii ◽  
S.A. Demchenkov ◽  
S.S. Polishchuk ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Vacuum Condensates
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