Critical variables in gaseous corrosion testing

Electrical Contacts, 1988., Proceedings of the Thirty Fourth Meeting of the IEEE Holm Conference on Electrical Contacts Pub Date : 1900-01-01 DOI:10.1109/HOLM.1988.16134

D. Jeannotte, S. Biyani, J. Roth, L. Hall, S. Davies, B. Vaughen, J. Steppan

引用次数: 3

Abstract

In recent work at Vanderbilt University, a failure mode was characterized that is accelerated by the presence of hostile gases in the environment. The effect of the velocity of the hostile gas stream was tested. Three different gas velocities were evaluated by measurement of the time of development of a shorting failure over a range of electrical field strengths. It was found that the time to failure decreased in proportion to the square root of the gas velocity as velocity increased in the range of 4 mm/s to 400 mm/s. The electrolyte base was provided by a coating of polyethylene glycol, average molecular weight 400, PEG400, between the Cu electrodes. These results make it possible to relate the time to failure to application variables such as gas concentration and gas-flow velocity, thus making possible at estimate of product lifetime from test results.<>

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气体腐蚀试验中的关键变量

范德比尔特大学(Vanderbilt University)最近的研究表明，环境中存在有害气体会加速失效模式。测试了敌对气流速度的影响。通过测量在一定电场强度范围内短路故障的发展时间来评估三种不同的气速。在4mm /s ~ 400mm /s范围内，随着速度的增加，失效时间与气体速度的平方根成比例地减少。电解质基由平均分子量为400的聚乙二醇(PEG400)涂层提供，该涂层位于Cu电极之间。这些结果可以将失效时间与应用变量(如气体浓度和气体流速)联系起来，从而可以从测试结果中估计产品寿命。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Electrical Contacts, 1988., Proceedings of the Thirty Fourth Meeting of the IEEE Holm Conference on Electrical Contacts

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