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  5. Preparation of WC@SnO2 Core-shell Composite and Its Application in AgSnO2 Contact Material

Preparation of WC@SnO2 Core-shell Composite and Its Application in AgSnO2 Contact Material

来源 :第十三届国际机电装置会议(IS-EMD2013) | 被引量 : 0次 | 上传用户：lxg19841130
【摘 要】
：
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 t
【作 者】
：
Qiu Jianmei Shen Qianhong Zhang Lingjie Yang Hui Fan Xianping Chen Lesheng 
【机 构】
：
Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027
【出 处】
：
第十三届国际机电装置会议(IS-EMD2013)
【发表日期】
：
2013年7期
【关键词】
：
Ag/WC@SnO2 contact material erosion welding powder resistance 
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论文部分内容阅读
　　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.
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