Accession Number : ADA327918

Title :   Reactions of Tricresyl Phosphate with Bearing Materials.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA TECHNOLOGY OPERATIONS

Personal Author(s) : Bertrand, P. A.

PDF Url : ADA327918

Report Date : 15 JUN 1997

Pagination or Media Count : 28

Abstract : Si3N4 and SiC do not react with TCP at 110 deg C in air, the same conditions used in typical steel-bearing pretreatment processes. At higher temperatures, there is some reaction, but the films formed are chemically different from those on steel. Bearing tests indicate that the reaction product is ineffective in extending the life of a lubricated, modified thrust bearing. Thus, pretreatment is unnecessary for Si3N4 and SiC bearing parts under the same conditions as used for steel.

Descriptors :   *MATERIALS, *SILICON CARBIDES, *SILICON NITRIDES, *THRUST BEARINGS, HIGH TEMPERATURE, FILMS, TEST METHODS, STEEL, CHEMICAL REACTIONS, PARTS, PHOSPHATES.

Subject Categories : Inorganic Chemistry
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE