Results 21 to 30 of about 14,028 (253)

Preparation of Ta/W Composite by CVD

Journal of Aeronautical Materials, 2017
The Ta/W composites with 10%W, 13%W and 18%W were prepared by chemical vapor deposition (CVD). The properties of Ta/W composites were investigated by optical microscopy (OM), scanning electron microscopy (SEM ) and tensile test.
QI Xiaohong, ZHENG Xu, CAI Hongzhong, LIU Shaopeng, HU Changyi, WEI Yan   +5 more
doaj   +1 more source

State policy in the field of circulation of precious metals and stones in the first years of soviet power as a critical factor in the development of the national economy in the 1920s. (based on the example of the South of Russia)

Nomadic Civilization: Historical Research
The modernization processes in economic policy that took place in the early years in Soviet Russia significantly influenced the gold mining situation, including in the field of circulation of precious metals and precious stones, which was in a depressed ...
E. N. Badmaeva, K. B. Monakhova
doaj   +1 more source

Research progress on new materials and properties of electronic skin

工程科学学报, 2020
Human skin is an extraordinary organ; it comprises an integrated，stretchable network of sensors that transmits information to the brain about tactile and thermal stimuli, enabling us to safely and efficiently operate in our environment.
Su-wei WAN, Jia-lin CHEN, Shi-hong LI, Jun-peng LI   +3 more
doaj   +1 more source

First Principles Calculation of the Effect of Cu Doping on the Mechanical and Thermodynamic Properties of Au-2.0Ni Solder

Molecules
To meet the demands for high-temperature performance and lightweight materials in aerospace engineering, the Au-Ni solder is often utilized for joining dissimilar materials, such as Ti3Al-based alloys and Ni-based high-temperature alloys.
Yan Wei, Hua Dai, Li Chen, Xian Wang, Hongzhong Cai, Jiankang Zhang, Ying Xu, Xingqiang Wang, Junmei Guo, Zhentao Yuan, Xiao Wang   +10 more
doaj   +1 more source

Fabrication and mechanical properties of porous tantalum carbon composites by chemical vapor deposition

Scientific Reports
This study investigates the deposition of tantalum (Ta) coatings on carbon foams using the chemical vapor deposition (CVD) method to enhance their compressive strength.
Junyu Zhu, Wenting Li, Hongzhong Cai, Xian Wang, Xingqiang Wang, Wuxun Zhu, Yan Wei, Xuming Li, Xingdong Zhao, Guixue Zhang, Haohong Jiang   +10 more
doaj   +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

The state and prospects of development of the mineral resource base of solid minerals of the Bolivarian Republic of Venezuela

Руды и металлы, 2022
The status and prospects of the mineral resource base of solid minerals of the Bolivarian Republic of Venezuela, as well as possibilities for developing the Russian-Venezuelan cooperation in the field of geology and mineral resource management are ...
Aslambek A. Germakhanov, Alexander I. Chernykh, Mikhail M. Girfanov, Valery A. Istomin, Andrey S. Svatkov   +4 more
doaj   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Synthesis and Performance of Deep-Red Phosphorescent Iridium Complexes with Pyrone as an Auxiliary Ligand

Molecules
Two bis-cyclometalated heteroleptic iridium complexes incorporating 1-phenylisoquinoline (piq) as the main cyclometalating ligand and 3-hydroxy-2-methyl-4-pyrone (ma) or 2-ethyl-3-hydroxy-4H-pyran-4-one (ema) as the auxiliary ligand, namely Ir(piq)2(ma) (
Wen Jiang, Wenming Hou, Caixian Yan, Zhifeng Nie, Qiaowen Chang, Xiangguang Li, Weiping Liu   +6 more
doaj   +1 more source

Comparison of Electrochemically Deposited Bi and Sn Catalysts onto Gas Diffusion Electrodes for the Electrochemical CO₂ Reduction Reaction to Formate

Applied Sciences, 2023
In this publication, we report about the selectivity and stability of bismuth (Bi)- and tin (Sn)-based electrocatalysts for the electrochemical CO2 reduction reaction (eCO2RR) for formate production.
Mila Manolova, Joachim Hildebrand, Sebastian Hertle, Şeniz Sörgel, Holger Kassner, Elias Klemm   +5 more
doaj   +1 more source