Effect of Corrosion by Hydrogen Sulfide on Electric Contact Resistance of Silver
Kazushige KIMURA, Kazuya MURAKAMI, Kenji ADACHI, Yoko TODO, Katsumi KANEHIRA and Juichi FUKAKURA
Abstract:Corrosion tests were done for silver plates in gaseous environment that contained H2S. After corrosion tests, electric contact resistanceĻof silver plate increased with exposed period of time t by the corrosion product Ag2S and was correlated linearly with the loss of weight W of Ag plate, that was derived from the formulae proposed and verified by the authors. Simple and useful procedure of corrosion life prediction was established for connectors composed of Ag, in which the environmental assessment plays an important role. Key Words:Corrosion, Hydrogen sulfide, Environmental index, Electric contact resistance