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Hot-pressed sintering of W/Cu functionally graded materials prepared from copper-coated tungsten powdersPei Tian1,Yi Feng1,Meng Xia1,Lan Zhao2,Cheng-Yu Cai2,Ke Liu1,Xiao-Chen Huang11. School... copper-coated tungsten powders.The effects of various sintering temperatures on relative density,microstructure,thermal conductivity,hardness and flexural strength were investigated.Scanning electron......
Detoxification of chromium-containing slag by Achromobacter sp. CH-1 and selective recovery of chromium CHAI Li-yuan(柴立元), WANG Yun-yan(王云燕), YANG Zhi-hui(杨志辉), WANG Qing-wei(王庆伟), WANG Hai-ying... metallurgy, a novel technology for the detoxification of chromium-containing slag by Achromobacter sp. CH-1 and chromium recovery was proposed. Strain CH-1 cell morphology before and after Cr......
J. Cent. South Univ. Technol. (2009) 16: 0043-0048 DOI: 10.1007/s11771-009-0007-5 Carburization of ferrochromium metals in chromium ore fines containing coal during voluminal reduction by microwave...; Abstract: Chromium ore fines containing coal (COFCC) can be rapidly heated by microwave to conduct the voluminal......
Process of pulse electrodeposition nanocrystalline chromium from trivalent chromium bath HE Xin-kuai(何新快)1, 2, QIU Guan-zhou(邱冠周)1, CHEN Bai-zhen(陈白珍)1, ZHOU Ning-bo(周宁波)1, WU Lu-ye(吴璐烨)2, XU Li... 412008, China Received 15 July 2007; accepted 10 September 2007 Abstract: Nanocrystalline chromium coating was prepared by pulse electrodeposition from trivalent chromium bath containing carboxylate-urea......
, abrasion performance and hardness were analyzed. Effects of graphite particle size and copper-coated graphite on its performance were also investigated. The results show that too high or too low... are, and the greater hardness is. The copper-coated graphite can improve the sintering process of copper matrix pantograph slider material, decrease its porosity and resistivity, and increase its abradability......
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Manufacturing process and microstructure of copper-coated aluminum wiresXiao-hua Chen1,2,Xin Tang3,Zi-dong Wang3,Xi-dong Hui1,Mo Li2,Yong-wei Wang41. State Key Laboratory for Advanced Metals... and Technology Beijing4. School of Mechanical Engineering, University of Science and Technology Beijing摘 要:Copper-coated aluminum wires exhibit good......
. [21] DAI L, LU Y, WANG X Y, ZHU J, LI Y H, WANG L. Production of nano-sized chromium carbide powders from Cr2O3/C precursors by direct electrochemical reduction in molten calcium chloride [J]. Int J... J. A morphological study of the FFC chromium and titanium powders [J]. Transactions of the Institution of Mining and Metallurgy Section C, 2006, 115: 49-54. 在CaCl2-NaCl共融盐中直接电解制备金属铬 刘政伟1,2,3,张红玲1,2,裴丽......
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Preparation of electrolytic copper powders with high current efficiency enhanced by super gravity field and its mechanism WANG Ming-yong(王明涌)1, 2, WANG Zhi(王 志)1, GUO Zhan-cheng(郭占成)1, 3 1... to enhance electrolytic reaction for the preparation of copper powders. The morphology, microstructure and size of copper powders were characterized by scanning electron microscopy, X-ray diffractometry......
