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Solid Lubricants: Overview and Recent Developments

Published online by Cambridge University Press:  29 November 2013

Paul Sutor
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Extract

A renaissance in research and development of solid lubricants has taken place during the past 10 years. This renaissance has been driven by the needs of advanced technological applications, for which liquid lubricants alone have become either ineffective or undesirable. Increasing the efficiency of jet and automobile engines, which entails engine operation at significantly higher temperatures, and increasing the longevity of space vehicles have been central technology drivers.

In the past 10 years, many new solid lubricants have been developed to address these needs for higher temperature operation and longer life. Their development, for the most part, has taken advantage of what is known concerning their mechanism of action. Although this mechanistic knowledge is incomplete, particularly at high temperatures, significant advances in material performance have been made. In addition, new methods of applying solid lubricant coatings, namely plasma and ion-beam-assisted vacuum deposition methods, have recently come into their own and produced improved materials.

This article will highlight developments in the 1980s which produced new solid lubricants and the advanced technologies which these materials will enable.

Several reviews of solid lubricants survey the area in more detail than is possible here. For overview purposes, this article will briefly describe the classes of materials used as solid lubricants, their mechanism of action, and areas of application.

Type
Technical Features
Information
MRS Bulletin , Volume 16 , Issue 5 , May 1991 , pp. 24 - 30
Copyright
Copyright © Materials Research Society 1991

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