Tribological performance and conductive capacity of Ag coating under boundary lubrication
Tribological performance and conductive capacity of Ag coating under boundary lubrication
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DOI：
10.1016/j.triboint.2017.02.006
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发表时间：
2017-06-01
影响因子：
6.2
通讯作者：
Hou, Buyi
中科院分区：
文献类型：
--
作者：
Chen, Junhuan;Xia, Yanqiu;Hou, Buyi
为了实现简单、稳定、长寿命的滑动电接触副，设计并制备了一种电接触元件的精细银涂层。本文在铜基体上制备了微细银（Ag）、热处理Ag和银-石墨（Ag/C）复合镀层。以聚苯胺（PAN）为导电添加剂，制备了导电脂.与Cu、Ag、处理Ag和Ag/C涂层相比，PAN基润滑脂润滑的Ag涂层具有上级导电性能和优异的边界润滑摩擦性能。通过对磨损表面的分析，认为银涂层良好的摩擦学性能是由于PAN颗粒的机械作用和PAN润滑脂形成的保护膜的作用。
To achieve simple, stable and long-life sliding electrical contact pairs, a kind of fine silver coating on electrical contact components was designed and prepared. In this article, electrodeposited fine silver (Ag), heat treated Ag and silver-graphite (Ag/C) composite coatings based on copper (Cu) substrate were prepared. The polyaniline (PAN) was doped as a conductive additive to afford the conductive grease. Compared with the Cu, Ag, treated Ag and Ag/C coatings, the Ag coating lubricated by PAN grease exhibited superior conductive capacity and excellent boundary-lubricated friction behavior. Through analysis of worn surface, the good tribological characteristics of Ag coating are ascribed to mechanical effect of the PAN particles and the protective film generated by PAN grease.