SnO2粒度对AgSnO2触头材料性能的影响  

Effect of SnO2 Particle Size on Properties of AgSnO2 Contact Material

作　　者：王海涛[1,2] 章枚 杨梦林 王景芹[1,2] 朱艳彩[1,2] WANG Hai-tao;ZHANG Mei;YANG Meng-lin;WANG Jing-qin;Zhu Yan-cai(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300130,China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学省部共建电工装备可靠性与智能化国家重点实验室,天津300130 [2]河北工业大学河北省电磁场与电器可靠性重点实验室,天津300130

出　　处：《稀有金属与硬质合金》2019年第4期58-64,共7页Rare Metals and Cemented Carbides

基　　金：国家自然科学基金(51777057);河北省自然科学基金(E2016202106);河北省高等学校科学技术研究项目(ZD2016078)

摘　　要：采用粉末冶金法制备了6种SnO2粒度的无掺杂AgSnO2和AgSnO2/La2O3两种触头材料,研究了SnO2粒度对两种AgSnO2触头材料物理性能和电接触性能的影响。结果表明,当SnO2粒度分别为1 000 nm和500 nm时,无掺杂AgSnO2和AgSnO2/La2O3两种触头材料的硬度适中,导电率较大,接触电阻和燃弧能量均较小且较稳定。通过选择合适的SnO2粒度,可改善AgSnO2触头材料的性能。Undoped AgSnO2 and AgSnO2/La2O3 contact materials with six kinds of SnO2 particle sizes were prepared by powder metallurgy,and the influence was studied of SnO2 particle size on physical properties and electrical contact properties of the two kinds of AgSnO2 contact materials.The results show that when SnO2 particle sizes are 1 000 nm and 500 nm,respectively,both the undoped AgSnO2 and AgSnO2/La2O3 materials have moderate hardness,high conductivity,small and stable contact resistance and arc energy.The properties of AgSnO2 contact materials can be improved by selecting appropriate SnO2 particle size.

关 键 词：AGSNO2触头材料 SnO2粒度 稀土La掺杂 物理性能 电接触性能 

分 类 号：TG146[一般工业技术—材料科学与工程]