Sliding member

Details Sliding member Sliding member

1990-07-06

1992-04-28

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428212, 428336, 428408, 428469, B32B 1500

Patent

active

051088134

ABSTRACT:
A sliding member which ensures a low coefficient of friction and a high degree of wear resistance, and is suitable for use in a bearing, mechanical seal, etc. It comprises a ceramic or metallic base, a diamond film formed on a surface of the base and having a rugged surface defining concavities, and a soft metal filling those concavities. When a relative sliding motion is made between it and a mating part formed from a hard material, only a low coefficient of friction occurs and the abrasive wear of the mating part is greatly reduced. It can maintain its high wear resistance for a long time even when it is used in a dry mode not involving the use of any lubricating oil, coolant, etc., since the diamond film does not undergo any change under heat to graphite having a lower degree of hardness.

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Oguri et al., "Low Friction Coatings of Diamond-Like Carbon with Silicaon Prepared by Plasma-Assisted Chemical Vapor Deposition" J. Mater. Res, vol. 5, No. 11, Nov. 1990, pp. 2567-2571.

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