Prospective use of chalcogenides in bearings with gas lubrication
Journal Article
·
· Chem. Pet. Eng. (Engl. Transl.); (United States)
OSTI ID:6162540
The use of chalcogenides as antifriction coatings for gas flow bearings in the helium compressors of high temperature helium cooled reactors was evaluated during start and stop tests of the compressor rotors under dry and semidry friction conditions. Tests were conducted on lubricant films of molybdenum disulfide, tungsten disulfide, tungsten diselenide, and tantalum diselenide at fixed sliding speeds and pressures. Results are tabulated for operating pressure and temperature ranges, microhardness, wear, and coefficients of friction, and indicate that the diselenides of tantalum and tungsten possess the best lubricant properties. Studies on the thermal stability of the compounds in helium were conducted. Diffusion coatings of molybdenum disulfide were also assessed.
- OSTI ID:
- 6162540
- Journal Information:
- Chem. Pet. Eng. (Engl. Transl.); (United States), Journal Name: Chem. Pet. Eng. (Engl. Transl.); (United States) Vol. 23:9-10; ISSN CPTEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210300* -- Power Reactors
Nonbreeding
Graphite Moderated
BEARINGS
CHALCOGENIDES
COATINGS
COMPARATIVE EVALUATIONS
COMPRESSORS
DEPOSITION
DIFFUSION COATING
FRICTION
GAS BEARINGS
GAS COMPRESSORS
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HARDNESS
HELIUM COOLED REACTORS
HTGR TYPE REACTORS
LUBRICANTS
LUBRICATION
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROHARDNESS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
PRESSURE EFFECTS
PROTECTIVE COATINGS
REACTORS
REFRACTORY METAL COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
SLIDING FRICTION
SULFIDES
SULFUR COMPOUNDS
SURFACE COATING
SYNTHETIC LUBRICANTS
TANTALUM COMPOUNDS
TANTALUM SELENIDES
TEMPERATURE EFFECTS
TESTING
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN SELENIDES
TUNGSTEN SULFIDES
WEAR
210300* -- Power Reactors
Nonbreeding
Graphite Moderated
BEARINGS
CHALCOGENIDES
COATINGS
COMPARATIVE EVALUATIONS
COMPRESSORS
DEPOSITION
DIFFUSION COATING
FRICTION
GAS BEARINGS
GAS COMPRESSORS
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HARDNESS
HELIUM COOLED REACTORS
HTGR TYPE REACTORS
LUBRICANTS
LUBRICATION
MATERIALS TESTING
MECHANICAL PROPERTIES
MICROHARDNESS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
PRESSURE EFFECTS
PROTECTIVE COATINGS
REACTORS
REFRACTORY METAL COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
SLIDING FRICTION
SULFIDES
SULFUR COMPOUNDS
SURFACE COATING
SYNTHETIC LUBRICANTS
TANTALUM COMPOUNDS
TANTALUM SELENIDES
TEMPERATURE EFFECTS
TESTING
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN SELENIDES
TUNGSTEN SULFIDES
WEAR