Accession Number : AD0257408

Title :   SURVEY OF MATERIALS FOR HIGH-TEMPERATURE BEARING AND SLIDING APPLICATIONS

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO DEFENSE METALS INFORMATION CENTER

Personal Author(s) : AMATEAU,M.F. ; NICHOLSON,D.W. ; GLAESER,W.A.

Report Date : 12 MAY 1961

Pagination or Media Count : 1

Abstract : A few general classes of high-temperature materials have shown promise in actual bearings. For rolling-contact conditions, cemented carbides and cobalt-base superalloys appear promising to at least 1300 F. For sliding conditions, the selection of materials is wider, including nickel-base and cobalt-base superalloys, cemented carbides, some cermets, and a few pure ceramics. Most of these materials have some merit for use to 1500 F. For higher temperatures, refractory metals and their alloys have been considered but their poor oxidation resistance and sensitivity to embrittlement constitute serious drawbacks to their use. For temperatures above 2000 F, indications are that intermetallics, graphite, and some ceramics should be considered for potential bearing applications. Above 3000 F, graphite, at present, appears to be the only material suitable for sliding-contact applications. (Author)

Descriptors :   *CERAMIC MATERIALS, *CERMETS, *REFRACTORY MATERIALS, ALLOYS, BEARINGS, CHEMICAL PROPERTIES, HIGH TEMPERATURE, MATERIALS, MECHANICAL PROPERTIES, METALS, PHYSICAL PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE