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Tribological Applications for Advanced Ceramics

Published online by Cambridge University Press:  28 February 2011

S. Jahanmir*
Affiliation:
Ceramics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
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Abstract

Advanced structural ceramics offer unique capabilities as tribomaterials. They are being used today in diverse applications such as tips for ball-point pens, precision instrumentbearings, and cutting tool inserts. Tribological applications of ceramics can be divided into several categories based on the properties of the ceramics. These include: resistance to abrasion and erosion; resistance to corrosive wear; wear resistance at elevated temperatures; low density; and electrical, thermal and magnetic properties. Examples of present utilization of ceramics in each category are described and a few examples of potentialfuture applications are given. Many scientific and technical barriers must be overcome before the full potential of ceramics in tribological applications is realized. These barriers are discussed in terms of the limited knowledge regarding tribological performance, problems with reliability, and lack of design knowledge and experience. It is clear that the wide-spread use of advanced ceramics requires further research and development. However, it must be realized that the solutions to the scientific and technical problems will be slow.

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