摘要
采用化学镀技术 ,在高能球磨所得纳米石墨粉上包覆银 ,制得纳米晶银 /石墨包覆粉体 ,经冷压、烧结、复压工序 ,制备了AgC5触头材料。采用此新工艺制备的触头材料与常规工艺制得的相比 ,在力学和物理性能等方面有了较大的提高。分断实验表明 :将纳米技术应用到银 /石墨触头材料的制备中 ,使材料的抗电弧磨损性能有了较大的改善。
Using electroless plating, the nanocrystalline graphite powder coated with silver was prepared from nano-graphite obtained by high-energy ball milling. By pressing, sintering and re-pressing, the AgC 5 electrical contact material was fabricated. The electrical contact material prepared by the novel process has great improvement in mechanical, physical properties. The make-break test shows that AgC 5 contact material fabricated by nano-phase coating possesses good resistance against arc erosion.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2003年第3期685-689,共5页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目 (5 0 0 710 2 9
5 0 10 10 0 4)
关键词
化学包覆
高能球磨
纳米石墨
银/石墨触头材料
电弧磨损
chemical coating
high-energy ball milling
nano-graphite
silver/graphite contact material
resistance against arc erosion
