Results 41 to 50 of about 7,955 (156)

Surface Nanostructuring of Copper Using Fluoride and Chloride

ChemElectroChem
Copper is an active electrocatalyst for various energy conversion reactions, but its performance depends on the structure of the active surface sites. In this work, we propose a simple strategy to tailor both the roughness and the active site's geometry ...
Vicente Pascual‐Llorens, Albert Serra Ramos, Pedro Mazaira‐Couce, María Escudero‐Escribano, Paula Sebastián‐Pascual   +4 more
doaj   +1 more source

Computational high entropy alloy design [PDF]

MATEC Web of Conferences
Materials scientists are developing new materials to meet increasing demands by employing a systematic approach linking material performance to composition, processing, and microstructure.
Simelane Khombisile, Becker Thorsten Hermann   +1 more
doaj   +1 more source

Microstructure Dependence of Magnetic Properties for Al_1.5Fe₃Co₃Cr₁ Multi-Principal-Element Alloy

Metals
This study focuses on the microstructures and soft-magnetic properties of the Al1.5Fe3Co3Cr1 multi-principal-element alloy (MPEA) in different states. The MPEA was prepared using arc melting and suction-casting, followed by various heat treatments.
Shaoheng Sun, Yaxia Qiao, Hao Zhang, Dejun Tu, Guojun Wang, Zhenhua Wang, Qing Wang   +6 more
doaj   +1 more source

A cost-effective eutectic high entropy alloy with an excellent strength–ductility combination designed by VEC criterion

Journal of Materials Research and Technology, 2022
Due to the excellent combination of strength and ductility, eutectic high entropy alloys (EHEAs) are of great interests to the researchers. Here, a cobalt free cost-effective eutectic high entropy alloy was designed by VEC criterion.
Hao Wu, Jun Xie, Huaiyu Yang, Delong Shu, Guichen Hou, Jinguo Li, Yizhou Zhou, Xiaofeng Sun   +7 more
doaj   +1 more source

An Overview on Fatigue of High-Entropy Alloys

Materials, 2023
Due to their distinct physical, chemical, and mechanical features, high-entropy alloys have significantly broadened the possibilities of designing metal materials, and are anticipated to hold a crucial position in key engineering domains such as aviation and aerospace.
Hu, Junchao, Li, Xue, Zhao, Qiuchen, Chen, Yangrui, Yang, Kun, Wang, Qingyuan   +5 more
openaire   +2 more sources

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

Microstructure and property of SiC ceramic joints brazed by CoFeCrNiCuTi2 high-entropy alloy with assistance of electric field

Cailiao gongcheng, 2023
With the current-assisted bonding technology, the rapid brazing of SiC ceramics was realized at 1125℃ with CoFeCrNiCuTi2 high-entropy alloy as the bonding layer material, which improves the bonding efficiency and ensures the full diffusion of elements ...
LIU Yihe, WANG Gang, ZHOU Xiaobing, WANG Miao, WANG Wei   +4 more
doaj   +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

Twinning in metastable high-entropy alloys [PDF]

Nature Communications, 2018
AbstractTwinning is a fundamental mechanism behind the simultaneous increase of strength and ductility in medium- and high-entropy alloys, but its operation is not yet well understood, which limits their exploitation. Since many high-entropy alloys showing outstanding mechanical properties are actually thermodynamically unstable at ambient and ...
Shuo Huang, He Huang, Wei Li, Dongyoo Kim, Song Lu, Xiaoqing Li, Erik Holmström, Se Kyun Kwon, Levente Vitos   +8 more
openaire   +4 more sources