High temperature cesium-containing solid lubricant

Details High temperature cesium-containing solid lubricant High temperature cesium-containing solid lubricant

1994-07-18

1996-04-16

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

252 12, 252 28, C10M10306

Patent

active

055079610

ABSTRACT:
A method for lubricating a ceramic bearing surface which comprises applying a cesium-containing compound selected from the group consisting of Cs.sub.2 MoO.sub.4, Cs.sub.2 SO.sub.4, Cs.sub.2 WO.sub.4, Cs.sub.2 WOS.sub.3, Cs.sub.2 MoOS.sub.3 and CsOH, to the bearing surface and heating the thus-coated bearing surface to a temperature of about 300.degree. C. or greater. Alternatively, the cesium-containing compound may be applied in admixture with a lower alkali metal silicate. This method is particularly useful for lubricating the bearings in expendable, high temperature turbine engines, such as those used in expendable missiles.

REFERENCES:
patent: 3285850 (1966-11-01), Graham
patent: 3553394 (1971-01-01), Zidlicky
patent: 4465604 (1984-08-01), King
patent: 4545973 (1985-10-01), King
patent: 4965001 (1990-10-01), King
patent: 5327998 (1994-07-01), Rosada et al.

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