Preparation of WC@SnO2 Core-shell Composite and Its Application in AgSnO2 Contact Material
WC@SnO2 core-shell composite were fabricated by a modified sol-gel method, in which nano-scaled SnO2 particles were uniformly deposited on WC particles modified by PVP(Polyvinylpyrrolidone).And then the Ag/WC@SnO2 contact materials were prepared by a briquette sintering-repressing-re-sintering process.The physical properties, electrical performances and microstructure of as-prepared Ag/SnO2 electrical contacts were investigated.Results show that Ag/SnO2 composites consisting of WC@SnO2 composites have higher density and conductivity.
Ag/WC@SnO2 contact material erosion welding powder resistance
Qiu Jianmei Shen Qianhong Zhang Lingjie Yang Hui Fan Xianping Chen Lesheng
Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027 Zhejiang-California International NanoSystems Institute,Hangzhou 310058 Wenzhou Hongfeng Electrical Alloy Co.,Ltd,Yueqing 325603
国内会议
武汉
英文
163-166
2013-11-16(万方平台首次上网日期,不代表论文的发表时间)