Influence of alloy components on arc erosion morphology of Ag/MeO electrical contact materials
Influence of alloy components on arc erosion morphology of Ag/MeO electrical contact materials
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DOI：
10.1016/s1003-6326(16)64105-5
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发表时间：
2016-01-01
影响因子：
4.5
通讯作者：
Zhou, Jie-min
中科院分区：
文献类型：
--
作者：
Wu, Chun-ping;Yi, Dan-qing;Zhou, Jie-min
利用扫描电子显微镜和三维光学轮廓仪(3DOP)研究了Ag/MeO(10)电触头材料在19V和20A直流电流和阻性负载条件下运行50000次后的电弧侵蚀形貌。结果表明，3DOP能提供更清晰、更详细的电弧侵蚀形貌信息。Ag/SnO2(10)电触头材料的耐电弧蚀性能最好，而Ag/CuO(10)电触头材料的耐电弧蚀性能最差。Ag/MeO(10)电触头材料的电弧侵蚀形态主要有三种不同类型。Ag/ZnO(10)和Ag/SnO2(10)电触头材料的电弧侵蚀形态主要是液体飞溅和蒸发，而Ag/CuO(10)和Ag/CDO(10)电触头材料的电弧侵蚀形态主要是从阳极到阴极的物质转移。Ag/SnO_2(6)In_2O_3(4)电触头材料的电弧侵蚀形态包括液体飞溅、蒸发和材料转移。此外，还讨论了Ag/MeO(10)电触头材料电弧侵蚀形貌的形成过程和机理。
Arc erosion morphologies of Ag/MeO(10) electrical contact materials after 50000 operations under direct current of 19 V and 20 A and resistive load conditions were investigated using scanning electron microscope (SEM) and a 3D optical profiler (3DOP). The results indicated that 3DOP could supply clearer and more detailed arc erosion morphology information. Arc erosion resistance of Ag/SnO2(10) electrical contact material was the best and that of Ag/CuO(10) was the worst. Arc erosion morphology of Ag/MeO(10) electrical contact materials mainly included three different types. Arc erosion morphologies of Ag/ZnO(10) and Ag/SnO2(10) electrical contact materials were mainly liquid splash and evaporation, and those of Ag/CuO(10) and Ag/CdO(10) were mainly material transfer from anode to cathode. Arc erosion morphology of Ag/SnO2(6) In2O3(4) electrical contact materials included both liquid splash, evaporation and material transfer. In addition, the formation process and mechanism on arc erosion morphology of Ag/MeO(10) electrical contact materials were discussed.