A Study of Composite Materials for New Sliding Electric Contacts Considering Distribution on Contact Surface of Solid Lubricants

Yoshitada WATANABE  

IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.6   pp.897-901
Publication Date: 2003/06/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Development of Electro-Mechanical Devices (IS-EMD 2002))
Category: Contact Phenomena
sliding contact,  solid lubricant,  composite material,  contact resistance,  coefficient of friction,  

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In recent years, sliding electric contacts came to be often used under very severe conditions such as high temperature, extremely low temperature, high vacuum, etc. Conventionally, solid lubricants having excellent properties in lubricating performance are generally used compositely with a metal of high electric conductivity, because of their high electrical resistivity. In the present study, we proved that more excellent sliding electrical contacts can be produced with a design made by controlling the distribution on contact surface of a solid lubricant having excellent lubricating performance and of a metal with high electric conductivity through expansion of Greenwood's theory.