Electrical breakdown characteristic of a Ce-doped W-Cu contact material

作     者：HU Kewen,CHEN Mianzhi,and YE Heng School of Materials Science and Engineering,Xi’an University of Technology,Xi’an 710048,China 

作者机构：School of Materials Science and Engineering Xi’an University of Technology Xi’an China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2010年第29卷第3期

页      面：261-264页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the Natural Science Foundation of the Education Department of Shaanxi Province  China (No. 08JK367) 

主　　题：doping rare earth W-Cu alloy electrical breakdown 

摘      要：W-Cu composite powder doped with Ce （1.5 wt.%） was prepared by mechanical alloying （MA）,and the W-Cu contact material was fabricated by hot pressing sintering in an electrical vacuum *** microstructure,electric conductivity,hardness,and breakdown voltage of the Ce-doped W-Cu alloy were measured and compared with a conventional W-Cu alloy prepared by powder *** results show that microstructural refinement and uniformity can improve the breakdown behavior and the electric arc stability of the Ce-doped W-Cu contact ***,the Ce-doped W-Cu contact material shows the characteristic of spreading electric arc,which is beneficial to electric arc erosion.