Accession Number : ADA192349

Title :   Tribology of Ceramics. Report of the Committee on Tribology of Ceramics.

Corporate Author : NATIONAL MATERIALS ADVISORY BOARD (NAS-NAE) WASHINGTON DC

PDF Url : ADA192349

Report Date : Jan 1988

Pagination or Media Count : 123

Abstract : The current state of knowledge of ceramic surface structures, composition, and reactivity is reviewed in this report. The tribological requirements of advanced mechanical systems now being developed (in particular, heat engines) exceed the capabilities of traditional metallic-based materials because of the high temperatures encountered. Advanced ceramic materials for such applications are receiving intensive scrutiny, but there is a lack of understanding of the properties and behavior of ceramic surfaces, with and without lubricants. The instrumentation and techniques available for the study of ceramic surfaces and the influence of processing on the properties of ceramics are described. The adequacy of models, ranging from atomic to macro, to describe and to predict ceramic friction and wear are discussed, as well as what is known about lubrication at elevated temperatures. From this analysis, recommendations are made for coordination, research, and development that will lead to better performance of ceramic materials in tribological systems.

Descriptors :   *CERAMIC MATERIALS, *TRIBOLOGY, HIGH TEMPERATURE, LUBRICANTS, LUBRICATION, REACTIVITIES, STRUCTURES, SURFACES, STRENGTH WEIGHT RATIO, WEAR RESISTANCE, IRON ALLOYS, NICKEL ALLOYS, MICROSTRUCTURE, SURFACE CHEMISTRY

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE