Results 91 to 100 of about 31,397 (308)

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Comparative Study on Carbon Erosion of Nickel Alloys in the Presence of Organic Compounds under Various Reaction Conditions. [PDF]

Materials (Basel), 2022
Volodin AM, Kenzhin RM, Bauman YI, Afonnikova SD, Potylitsyna AR, Shubin YV, Mishakov IV, Vedyagin AA.   +7 more
europepmc   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

Advanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang, Bin Fang, Tao Meng, Xiaodong Chen, Ya Chen, Xin Gao, Fei Liang, Hongchao Sun, Jiangmin Zou, Chao Yuan, Yuanyuan Shao, Peiyi Ji, Yangang Wang, Lifeng Cui, Guoxiu Wang, Duu‐Jong Lee   +15 more
wiley   +1 more source

The influence of the structure and properties of powder heat-resistant alloys on the features of 3D printing of products from them [PDF]

MATEC Web of Conferences
Methods of fractional analysis of powders based on heat-resistant nickel alloys, electron microscopy and elemental analysis, study of bulk density of powder fractions, as well as approaches of mathematical modeling of packing density were applied in the ...
Duriagina Zoia, Lemishka Ihor, Ovchynnykov Oleksandr, Yefanov Vladimir, Klimczyk Piotr   +4 more
doaj   +1 more source

Metodologia de avaliação de grau de degradação e rejuvenescimento de superligas à base de níquel [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2014.A microestrutura de superligas à base de níquel é constituída de grande quantidade de ...
Turazi, Almir
core  

Chronic effects of intratracheally instilled nickel-containing particles in hamsters

, 2022
S.467-479Only limited information is available concerning whether a potential carcinogenic risk is associated with exposure to particles of nickel alloys.
Pott, F., Bellmann, B., Muhle, H., Fuhst, R., Mohr, U., Takenaka, S.   +5 more
core  

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini, Dawid Kasprzak, Lincoln Crowe, Cecilia Spedalieri, Johannes Baller, Naiyu Qi, Fariza Kalyk, Gustav Graeber   +7 more
wiley   +1 more source

Electrodeposition and Corrosion Behavior of Cu-Sn Alloys in 3.5 wt.% NaCl and 0.1 M HNO₃ Solutions

Metals
In this study, Cu-Sn alloys with varying compositions were synthesized using nickel sulfate as a structure-directing agent during electrodeposition.
Xiye Jiao, Zhou Yang, Jie Yan, Jin Zhang, Xiaolin Chen, Renguo Guan   +5 more
doaj   +1 more source

Local magnetic moments in iron and nickel at ambient and Earth’s core conditions

Nature Communications, 2017
A first principles understanding of the origins of the Earth's magnetic field requires the study of iron and nickel at high temperatures and pressures. Here, the authors find anomalies in the electronic properties of nickel and iron-nickel alloys, which ...
A. Hausoel, M. Karolak, E. Şaşιoğlu, A. Lichtenstein, K. Held, A. Katanin, A. Toschi, G. Sangiovanni   +7 more
doaj   +1 more source