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IEICE TRANSACTIONS on Electronics

Effect of Contact Lubricant on Contact Resistance Characteristics — Contact Resistance of Lubricated Surface and Observation of Lubricant Molecules —

Terutaka TAMAI, Masahiro YAMAKAWA, Yuta NAKAMURA

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Summary :

The electrical lubricants have been accepted to reduce friction of contacts and to prevent degradation of contact resistance. However, as the lubricant has an electrical insulation property it seems that application to contact surface is unsuitable for contact resistance. These mechanisms in contact interfaces have not fully understood. In this paper, relationships between contact resistance and contact load were examined with both clean and lubricated surfaces. Orientation of the lubricant molecules was observed by high magnification images of STM and AFM. There was no difference in contact resistance characteristics for both clean and lubricated surfaces in spite of lubricants thickness. The molecules were orientated perpendicular to the surface. This fact turns over an established theory of adsorption of non-polar lubricant to surface.

Publication
IEICE TRANSACTIONS on Electronics Vol.E99-C No.9 pp.985-991
Publication Date
2016/09/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E99.C.985
Type of Manuscript
Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices)
Category

Authors

Terutaka TAMAI
  Elcontech Consulting, Inc.
Masahiro YAMAKAWA
  TETRA Co., Ltd.
Yuta NAKAMURA
  TETRA Co., Ltd.

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