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FRICTION AND WEAR CHARACTERISTICS OF CERMETS AT HIGH TEMPERATURE AND HIGH VACUUM

Technical Report ·
OSTI ID:4821366
The friction and wear characteristics of several bearing substrate materials and lubricants were determined over a temperature range from ambient to 2000 deg F, and in normal atmosphere with pressure varied from 760 to l0/sup -6/ mm Hg. The sliding speed was 14 to 20 fpm. The load ranged from l500 to 15,000 psi. Two oxide-bonded cermets (CrAl/sub 2/O/sub 3/-W and Cr -Al/sub 2/O/sub 3/- Mo-TiO/sub 2/) were found to exhibit low wear and moderate friction when run against them selves throughout a wide range of test conditions. A third cermet (Cr -Al/sub 2/O/sub 3/) showed very poor frictional properties Three high- temperature alloys were also investigated for purposes of comparison. Test results are also presented which indicate that two of the cermets were effectively lubricated by precious metal films. (auth)
Research Organization:
Southwest Research Inst., San Antonio
NSA Number:
NSA-16-005708
OSTI ID:
4821366
Report Number(s):
ASD-TR-61-301
Country of Publication:
United States
Language:
English