摘要
采用机械混粉、化学包覆粗石墨和球磨纳米石墨制备银 /石墨混合粉 ,经冷压、烧结、复压工序 ,制备了AgC5触头材料。性能测试和组织分析表明 :包覆纳米石墨工艺 ,制备得到了组织更均匀的银 /石墨触头材料 ,同时 。
Powders conposed of silver and graphite are prepared by means of mechanical mixing,chemically claded coarse graphite and ball milled nano-graphite,and then the AgC 5 contact material will be produced by cold pressing,sintering and repressing.The property testing and microstructure observation have shown that Ag/C contact material which are fabricated by clading nano-graphite will acquire more homogeneous microstructure and meanwhile the electrical erosion property will be greatly enhanced.
出处
《热处理》
CAS
2003年第1期24-27,共4页
Heat Treatment
基金
国家自然科学基金资助项目 (No .5 0 0 710 2 9andNo .5 0 10 10 0 4 )
上海市纳米专项基金资助项目
关键词
化学包覆工艺
高能球磨
纳米石墨
银/石墨触头材料
电磨损
chemical clading process
high-energy ball milling
nano-graphite
silver/graphite contact material
electrical erosion
