新型银基电接触材料的研究进展  

Research Progress of New Silver-based Electrical Contact Materials

作　　者：王塞北[1,2] 王松[2] 孙勇[1] 谢明[2] 陈永泰[2] 李爱坤[2] 侯攀 刘满门[2] WANG Saibei;WANG Song;SUN Yong;XIE Ming;CHEN Yongtai;LI Aikun;HOU Pan;LIU Manmen(Faculty of Material Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Advance Technologies for Comprehensive Utilization of Precious Metals,Kunming Institute of Precious Metals,Kunming 650106,China)

机构地区：[1]昆明理工大学材料科学与工程学院,昆明650093 [2]昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《贵金属》2019年第4期72-77,共6页Precious Metals

基　　金：国家自然科学基金项目(51707087,51967008,51767011,U1602271);云南省应用基础研究项目(2018FB094,2018FD124)

摘　　要：综述了3种新型银基电接触材料的性能特点。以NiO、Bi2O3或CuO改性的Ag/SnO2MeO可以改善传统Ag/SnO2电接触材料的接触电阻稳定性、温升控制及室温加工性;以Ag/Ti3SiC2和Ag/Ti3AlC2为代表的三元层状化合物陶瓷相增强银基材料(Ag/MAX)可以改善AgNi材料大电流条件下的抗熔焊性能,降低直流负载条件下材料转移量;用石墨烯替代传统石墨研制的Ag/GNPs可以解决表面膜增厚、接触电阻增大、耐磨性不足等缺点。提出新型银基电接触材料的主要研发方向。The performance characteristics of three types of new silver-based electrical contact materials were reviewed.The stability of contact resistance,temperature control and machinability at room temperature of traditional Ag/SnO2 contact materials were enhanced by the introduction of NiO,Bi2O3 or CuO component.The anti-welding behavior of the Ag/MAX electrical contact materials such as Ag/Ti3SiC2 and Ag/Ti3AlC2 under heavy current was improved,and the materials transfer under DC load was reduced.Ag/GNPs with graphene solves the drawbacks of thickened surface film,increased contact resistance and insufficient wear resistance,compared to Ag/GNPs with graphite.The directions of future development were also presented in this paper.

关 键 词：银基电接触材料 Ag/SnO2MeO Ag/MAX Ag/GNPs 性能 

分 类 号：TG146.3[一般工业技术—材料科学与工程]