Accession Number : ADP005052

Title :   Tribological Systems as Applied to Aircraft Engines,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s) : Buckley,Donald H.

Report Date : FEB 1986

Pagination or Media Count : 10

Abstract : Tribological systems as applied to aircraft are reviewed. The importance of understanding the fundamental concepts involved in such systems is discussed. Basic properties of materials which can be related to adhesion, friction and wear are presented and correlated with tribology. Surface processes including deposition and treatment are addressed in relation to their present and future application to aircraft components such as bearings, gears and seals. Lubrication of components with both liquids and solids are discussed. Advances in both new liquid molecular structures and additives for those structures are reviewed and related to the needs of advanced engines. Solids and polymer composites are suggested for increasing use and ceramic coatings containing fluoride compounds are offered for the extreme temperatures encountered in such components as advanced bearings and seals.

Descriptors :   *TRIBOLOGY, *AIRCRAFT ENGINES, *WEAR RESISTANCE, LUBRICATION, BEARINGS, SEALS(STOPPERS), GEARS, WEAR, FRICTION, ADHESION, SOLID LUBRICANTS, CERAMIC COATINGS, LUBRICANT ADDITIVES, SURFACE CHEMISTRY, THERMAL PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE