摘要
在快速试验机上对ＡｇＣｄＯ、ＡｇＳｎＯ_２和ＡｇＷＣ触头材料进行了分断电弧侵蚀试验。利用扫描电镜和光学金相显微镜对熔层表面和剖面进行微观测试。研究了触头表层在电弧作用下的相变过程和熔层表面的微观组织结构；分析了触头气孔的形成机理和裂纹的产生原因与抑制途径；探讨了触头的耐电弧侵蚀能力与熔层组织结构的关系。
The experiments for erosion behavior of AgCdO, AgSnO2 and AgWC contacts by breaking arcs were carried out in an accelerated testing machine . The surface and the profile of melting range were ex- amined by SEM and metallograph . The phase transformation and the microstructure and the composition of the surface of melting range were analyzed . The hole and cracking mechanism were studied . The mechanism of arc erosion and microstructure and the composition of the surface of melting range were dis- cussed.
出处
《电工技术学报》
EI
CSCD
北大核心
1997年第6期1-5,共5页
Transactions of China Electrotechnical Society
基金
国家自然科学基金
