碳纳米管/锡基轴瓦合金复合减摩镀层的制备  

Preparation of Carbon-nano-tubes/tin-based Compound Anti-friction Coating

作　　者：胡正西[1] 揭晓华[1] 卢国辉[1] 

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《热加工工艺》2009年第4期27-29,34,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50775041);广东省自然科学基金资助项目(05001804);广东省科技计划资助项目(2008B010400029)

摘　　要：采用复合电沉积方法在铜基轴瓦合金的表面制备碳纳米管/锡基轴瓦合金复合减摩镀层,研究了电沉积工艺参数对碳纳米管/锡基复合镀层的组织与性能的影响。结果表明,当阴极电流密度为1.5 A/dm2,镀液中碳纳米管的质量浓度为2 g/L、镀液的pH值为1时,镀层生长良好,碳纳米管分布均匀。A new carbon-nano-tubes/tin-based compound anti-friction coating was prepared on the surface of cooper-based bearing by compound electroplating technology in order to promote the anti-friction characteristic of bearing alloy. The influences of process parameters on microstructure and mechanical properties of the compound coating were studied. The results show that the compound coating has a good quality and the carbon nano-tubes disperses well on the surface when the current density is 1.5 A/dm^2, the content of carbon nano-tubes is 2 g/L, the bathing＇ pH value is 1 and the temperature is 25℃.

关 键 词：复合电沉积 碳纳米管 减摩镀层 硬度 

分 类 号：TG174.44[金属学及工艺—金属表面处理]