BEARING MATERIALS COMPATIBILITY FOR SPACE NUCLEAR AUXILIARY POWER SYSTEMS
A program to evaluate materials for suitability ss exposed bearings on nuclear auxiliary power systems (SNAP Program) for space vehicles is reported. Friction coef ficients of material combinations in a 10/sup -6/ mm Hg vacuum at 1000 deg F for 200 hr were measured. Seven combinations found to have friction coefficients less than 0.50 are: graphite-Haynes 90; graphite-Stellite No. 3; graphiteAl/sub 2/O/sub 3/ (sprayed); Al/sub 2/O/sub 3/ (sprayed)-Cr/sub 3/ C/sub 2/ (spr ayed); Al/sub 2/O/sub 3/ (sprayed)-TiC; Al/sup 2/O /sub 3/ (solid)-3-F- 12; and Al/sub 2/O/sub 3/ (solid)N-12. (auth)
- Research Organization:
- Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
- DOE Contract Number:
- AT(11-1)-GEN-8
- NSA Number:
- NSA-16-012786
- OSTI ID:
- 4787093
- Report Number(s):
- NAA-SR-6476
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINUM OXIDES
BEARINGS
CHROMIUM ALLOYS
CHROMIUM CARBIDES
COBALT ALLOYS
FRICTION
GRAPHITE
MEASURED VALUES
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NICKEL ALLOYS
POWER
SNAP BATTERIES
SNAP REACTORS
SPACE APPLICATIONS AND TECHNOLOGY
SPACE VEHICLES
SPUTTERING
STELLITE
TITANIUM CARBIDES
TUNGSTEN ALLOYS
VACUUM
BEARINGS
CHROMIUM ALLOYS
CHROMIUM CARBIDES
COBALT ALLOYS
FRICTION
GRAPHITE
MEASURED VALUES
NESDPS Office of Nuclear Energy Space and Defense Power Systems
NICKEL ALLOYS
POWER
SNAP BATTERIES
SNAP REACTORS
SPACE APPLICATIONS AND TECHNOLOGY
SPACE VEHICLES
SPUTTERING
STELLITE
TITANIUM CARBIDES
TUNGSTEN ALLOYS
VACUUM