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
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