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Zeng Delin;Zhou Hongcui Powder Metallurgy Research Institute  
Ag-W electrical contacts made from composite powders produced by H_2- reduction of a precipitated silver tungstate have excellent electrical properties because of their finer grain structure and homogeneous chemical compositions. In this paper, a silver tungstate and silver carbonate mixture coprecpitated by an aqueous solution reaction has been investigated with respect to the reaction conditions and the influence of reduction procedure on the properties of the composite powder. The results showed the pH-value of AgNO_3 solution and the amount of added Na_2CO_3 have a significant effect on the silver content of the coprecipitated mixture, and the reaction temperature especially the temperature and time of the second stage reduction are the main parameters affecting the mean particle size of the composite powder.
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Chinese Journal Full-text Database 10 Hits
1 ZHAO Feng-qi, QIN Guang-ming, CAI Bing-yuan (Xi′an Modern Chemistry Research Institute, Xi′an 710065, China);Research Status and Development Trends of Nanometer Materials in the Application of Propellants and Explosives[J];Chinese Journal of Explosives & Propellants;2001-04
2 Li Shufen Jin Rongchao (University of Science and Technology of China,Hefei 230026);The Effects of Boron Particle Surface Coating on the Thermal Decomposition of Fuel rich Propellant[J];;1997-01
3 Wang Yanhui Wang Mingzhi Guan Changbin (Yanshan University);Study on the Ni-plating Technology on Diamond Surface[J];Surface Technology;1993-01
4 WANG Minghui, LI Hexing * (Department of Chemistry, Shanghai Normal University, Shanghai 200234, China);Liquid-Phase Hydrogenation of Nitrobenzene to Aniline over Ni-B/SiO_2 Amorphous Catalyst[J];Chinese Journal of Catalysis;2001-03
5 ;The Characteristics and Application of Electroless Plating for Fabricating Metal/Ceramie Composite Powder[J];Materials Review;1996-05
6 KONG Xiaoli, LIU Yongbing, YANG bo(College of Materials Science and Engineering, Jilin University, Changchun 130025,China);Research progress in nanocomposite materials[J];Material Science and Technology;2002-04
7 XU Jiong, ZHU Li\|hui, YU Hai\|feng (Department of Materials Science and Engineering,Shanghai University, Shanghai\ 200072,China);Failure Mechanism of Silver-based Contact Material under Electric Arc[J];Materials Science and Engineering;2003-04
8 Yuan Hongming Huang Bafan Luo Ruixue Zhang Long (Northwest Institute for Nonferrous Metal Research);Investigation of Composite Process of Ag-Cu-C Contact Material with Multimillion-fibres[J];Rare Metal Materials and Engineering;1992-01
9 Wang Jizhou, Wang Jiafu, Shi Lu (Gold Institute of Northeasten University, Shenyang 110015) Liu Gang, Wang Yanjie (Shenyang Processing Works for Nonferrous Metals, Shenyang 110003);Microstructural Observation and Analysis of Rare Earth Silver Alloy[J];RARE METAL MATERIALS AND ENGINEERING;1999-04
10 Wang Jingqin, Lu Jianguo, Wen Ming, Wang Baozhu (Hebei University of Technology, Tianjin 300130,China);Study on the Behavior of Silver-Rare Earth Oxide Contact Material[J];Rare Metal Materials and Engineering;2001-03
【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 JIA Zhi-hua,MA Guang,WANG Yi,ZHENG Jing(Northwest Institute for Nonferrous Metal Research,Xi'an 710016,China);Function and Application of Rare Earth in Silver Based Contact Material[J];Development and Application of Materials;2008-06
2 Wang Xuetao,Yu Lin,Peng Lanqiao,Xu Jieyu,Sun Ming(Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510006,China);The Preparation and Research Development of Nanometer Nickel and Its Alloys[J];Guangdong Chemical Industry;2007-09
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