Friction and Contact Resistance through True Contact Interface (国際セッション IS-EMD2005) -- (Contact Phenomena)

概要

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Main factor for both friction and contact resistance is a true contact area in contact interface. Contact resistance depends on the size of true contact area and contaminant films interposed between the contact areas of the interface. Moreover, friction force also depends on the true contact area. Particularly, occurrence of metallic junctions in the true contact area strongly effect on the friction force. Therefore, since both of electrical contact and friction force are related to the size of the true contact area, the contact resistance and the friction force are considered to be interrelated through true contact areas. For such electromechanical devices with sliding contacts as connector, sliding switches, the contact resistance and friction are important characteristics. In order to obtain low contact resistance, contact load should be higher, but the fiction force increases. Theses are opposite side problems. In this study, as the contact resistance and friction occur in the same true contact area, to express the relationship between the contact resistance and friction was attempted in an equation. Moreover, this relationship was examined experimentally on a variety of contact surface with different surface conditions.
社団法人電子情報通信学会の論文
2005-11-10