Combined effects of fretting and pollutant particles on the contact resistance of the electrical connectors

Zhigang Kong, Jonathan Swingler

Research output: Contribution to journalArticle

6 Citations (Scopus)
38 Downloads (Pure)

Abstract

Usually, when electrical connectors operate in vibration environments, fretting will be produced at the contact interfaces. In addition, serious environmental pollution particles will affect contact resistance of the connectors. The fretting will worsen the reliability of connectors with the pollutant particles. The combined effects of fretting and quartz particles on the contact resistance of the gold plating connectors are studied with a fretting test system. The results show that the frequencies have obvious effect on the contact resistance. The higher the frequency, the higher the contact resistance is. The quartz particles cause serious wear of gold plating, which make the nickel and copper layer exposed quickly to increase the contact resistance. Especially in high humidity environments, water supply certain adhesion function and make quartz particles easy to insert or cover the contact surfaces, and even cause opening resistance.
Original languageEnglish
JournalProgress in Natural Science: Materials International
Early online date26 May 2017
DOIs
Publication statusE-pub ahead of print - 26 May 2017

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