弹跳参数对银/金属氧化物接触材料冲蚀的影响

Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts Pub Date : 1993-09-27 DOI:10.1109/HOLM.1993.489654

E. Hetzmannseder, W. Rieder

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引用次数: 26

摘要

通过对弹跳模型开关中各参数值的系统变化，研究了弹跳参数(弹跳弧持续时间、弹跳高度、静态接触力、电流和磁感应强度)对单冲蚀的影响。模型开关模拟了现代接触器中发生的反弹。Ag/SnO/sub 2/的侵蚀损失比Ag/CdO高3倍或低约50%，这取决于制造工艺(内部氧化，粉末冶金生产)和/或材料的添加剂，因此取决于材料的结构，而不是金属氧化物成分(CdO或SnO/sub 2/)的种类。所研究材料的不同腐蚀速率与其受应力表面的微观结构有关。

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The influence of bounce parameters on the make erosion of silver/metal-oxide contact materials

The influence of the bounce parameters (bounce arc duration, bounce height and static contact force, current and magnetic induction) on the make only erosion was investigated by systematic variation of each single parameter value in a bounce model switch. The model switch simulates bounces occurring in modern contactors. Ag/SnO/sub 2/ suffered either three times higher or about 50% lower erosion losses than Ag/CdO depending on the manufacturing process (internally oxidized, powder metallurgically produced) and/or the additives of the materials, and therefore on the structure of the materials rather than on the kind of metal oxide component (CdO or SnO/sub 2/). The different make erosion rates of the materials investigated have been correlated with the micro structure of their stressed surfaces.

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来源期刊

Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts

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