Preparation and Arc Breakdown Behavior of Nanocrystalline W-Cu Electrical Contact Materials

查看全文 作　　者：Wenge [1,2]CHEN;Zhanying [2]KANG;Bingjun [2]DING

机构地区：[1]School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, China;[2]Department of Materials Physics, Xi'an Jiaotong University, Xi'an 710049, China

出　　处：《Journal of Materials Science & Technology》索引2005年第21卷第6期,共4页

基　　金：supported by the National Natural Science Fundation of China under grant No.50071043;the Natural Science Fundation of Shaanxi province under grant No.2004E105. 摘　　要：Nanostructured (NS) W-Cu composite powder was prepared by mechanical alloying (MA), and nanostructured bulk ofW-Cu contact material was fabricated by hot pressed sintering in an electrical vacuum furnace. The microstructure,electric conductivity, hardness, breakdown voltage and arcing time of NS W-Cu alloys were measured and comparedto conventional W-Cu alloys prepared by powder metallurgy. The results show that microstructural refinement anduniformity can improve the breakdown behavior, the electric arc stability and the arc extinction ability of nanos-tructured W-Cu contacts materials. Also, the nanostructured W-Cu contact material shows the characteristic ofspreading electric arcs, which is of benefit to electric arc erosion. 关键词：纳米材料钨铜合金接触材料纳米结构电传导性

相关文献

参考文献（14）
引证文献（10）
耦合文献（0）

参考文献(14)

引证文献(10)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Preparation and Arc Breakdown Behavior of Nanocrystalline W-Cu Electrical Contact Materials

参考文献(14)

引证文献(10)

用户提示