Results 71 to 80 of about 175,535 (378)

Two-dimensional noble metal-based intermetallics for electrocatalysis

Energy Materials and Devices, 2023
As a unique two-dimensional (2D) material, 2D noble metal-based intermetallic compounds (IMCs) have attracted much attention in electrocatalysis owing to their exceptional physical and chemical properties.
Fukai Feng, Sumei Han, Qipeng Lu, Qinbai Yun   +3 more
doaj   +1 more source

Shear enhanced heterogeneous nucleation in some Mg- and Al- alloys [PDF]

, 2009
Intensive shearing was applied to alloy melts at temperatures above their liquidus by using a twinscrew mechanism. The sheared melt was then cast into a TP1 mould for microstructural examination.
Fan, Z, Granasy, L, Li, HT, Scamans, GM, Wang, Y, Xia, M, Xu, J, Zhang, ZF   +7 more
core   +1 more source

Atomic Structure Evolution of Pt–Co Binary Catalysts: Single Metal Sites versus Intermetallic Nanocrystals

Advances in Materials, 2021
Due to their exceptional catalytic properties for the oxygen reduction reaction (ORR) and other crucial electrochemical reactions, PtCo intermetallic nanoparticle (NP) and single atomic (SA) Pt metal site catalysts have received considerable attention ...
Xing Li, Yanghua He, Shaobo Cheng, Boyang Li, Yachao Zeng, Zhenhua Xie, Q. Meng, Lu Ma, K. Kisslinger, X. Tong, Sooyeon Hwang, S. Yao, Chenzhao Li, Zhi Qiao, Chongxin Shan, Yimei Zhu, Jian Xie, Guofeng Wang, Gang Wu, D. Su   +19 more
semanticscholar   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

Determination of Solidification of Rigidity Point Temperature Using a New Method [PDF]

, 2020
This work aims to calculate the rigidity point temperature of aluminum alloys by three new methods and compare them with currently employed methods. The influence of major and minor alloying elements over the rigidity point temperature is also discussed.
Crespo, Ignacio, Sánchez, Jon Mikel, Vicario, Iban, Villanueva, Ester   +3 more
core   +1 more source

Facile Access to an Active γ‐NiOOH Electrocatalyst for Durable Water Oxidation Derived From an Intermetallic Nickel Germanide Precursor

Angewandte Chemie, 2020
Identifying novel classes of precatalysts for the oxygen evolution reaction (OER by water oxidation) with enhanced catalytic activity and stability is a key strategy to enable chemical energy conversion.
P. Menezes, Shenglai Yao, R. Beltrán‐Suito, J. Hausmann, P. Menezes, M. Driess   +5 more
semanticscholar   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

Advanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Lattice strain and composition regulated morphology kinetics with antiphase boundary in Co-based superalloy

Materials & Design
Lattice mismatch strain (LMS) is an intrinsic gene for the coherent fcc-γ/L12-γ′ superalloys, the kinetics evolution, volume fraction, and rafting morphology of γ′ phase will be affected by the LMS, and consequently, the mechanical properties of ...
Shenglong Wang, Junpeng Song, Ye Shan, Zan Zhang, Kunning Niu, Yongsheng Li   +5 more
doaj   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

Advanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi, Pankaj Shrivastava, Ganesh Chouhan, Velaphi Msomi   +3 more
wiley   +1 more source

Effect of Al mass fraction on the properties of porous FeCrAl alloys

Fenmo yejin jishu, 2022
The typical heat-resistant FeCrAl alloys have recently been developed as the high-temperature resistant porous materials which are applied widely in the fields of coal-gas purification and high-temperature catalyst carrier. The aluminum mass fraction has
GUO Fei, YU Hang, GAO Zhen-cheng, MA Jun-liang, ZHANG Hui-bin   +4 more
doaj   +1 more source