户外高压隔离开关用电接触银/石墨/石墨烯复合镀层的制备与性能研究  

Preparation and Properties of Electrical Contact Silver/Graphite/Graphene Composite Coatings for Outdoor High-voltage Disconnectors

作　　者：王建才 裴锋 田旭 马光 贾蕗璐 叶志国[1] Wang Jiancai;Pei Feng;Tian Xu;Ma Guang;Jia Lulu;Ye Zhiguo(School of Materials Science and Engineering,Nanchang Hangkong University,Jiangxi,310063;Electric Power Research Institute of State Grid Jiangxi Electric Power Co.,Ltd.,Jiangxi,330096;State Grid Smart Grid Research Institute Co.,Ltd.,Beijing,102211)

机构地区：[1]南昌航空大学材料科学与工程学院,江西310063 [2]国网江西省电力有限公司电力科学研究院,江西330096 [3]国网智能电网研究院有限公司,北京102211

出　　处：《当代化工研究》2022年第20期14-16,共3页Modern Chemical Research

基　　金：江西省电力有限公司重大科技项目“重腐蚀区变电站导体材料腐蚀失效及现场腐蚀防护技术研究”(项目编号:52182020008L)。

摘　　要：采用电沉积方法在KI体系下制备了银/石墨/石墨烯复合镀层,探究了不同石墨含量镀液对所制备复合镀层物相、表面硬度、耐磨性、热导率的影响。在石墨烯用量为石墨烯含量为2g·L^(-1)时,结果表明,随着镀液中石墨含量的增加,复合镀层中石墨含量先增加后减小;30g·L^(-1)时,复合镀层中石墨分布含量最高且分散均匀,表面硬度、热导率达到最大,分别为135.3HV、370.8W·m^(-1)·k^(-1)(25℃),平均摩擦因数降至最小为0.245。银/石墨/石墨烯复合镀层较纯银镀层综合性能大幅提高,大大延长了户外高压隔离开关的使用寿命。The silver/graphite/graphene composite coatings were prepared under KI system by a facile electro-deposition method.The effects of different graphite content on the phase,surface hardness,wear resistance,thermal conductivity in the electrolyte were investigated.When the graphene content in the electrolyte is 2 g·L^(-1),the results show that with the increase of graphite content in the electrolyte,the distribution of graphite in the coating firstly increases and then decreases.When the graphite content in the electrolyte is 30 g·L^(-1),the surface hardness and thermal conductivity of the composite coating reach the maximums of 135.3 HV and 370.8 W·m^(-1)·k^(-1)measured at 25℃,respectively;The average friction coefficient is reduced to a minimum of 0.245.Compared with pure silver coating,the as-prepared silver/graphite/graphene composite coating has improved the comprehensive performance,which can prolong the service life of outdoor high-voltage disconnector.

关 键 词：复合电沉积 银复合镀层 户外高压隔离开关 石墨烯 石墨 

分 类 号：TQ15[化学工程—电化学工业]