Carbon-metal phosphate ester composite and method of making

Details Carbon-metal phosphate ester composite and method of making Carbon-metal phosphate ester composite and method of making

1983-02-28

1984-06-12

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having a component wherein a constituent is liquid...

427113, 427244, 427294, B32B 904, B32B 3100

Patent

active

044541937

ABSTRACT:
A carbon-metal phosphate composite comprises a carbon body having a glassy metal metaphosphate distributed therethrough and coating the surface thereof, wherein said metal metaphosphate is a product of the reaction between a metal salt and a nonionic organophosphorus ester. The composite is characterized by an improved resistance to oxidation at elevated temperatures and a decreased coefficient of friction as compared to carbon bodies. The composite is made by contacting a carbon body, having an external surface and an internal surface provided by an open network of connecting pores, with a solution comprising a nonionic organophosphorus ester and a metal salt to coat both the internal and external surface thereof, curing said coated carbon body to react said organophosphorus ester with said metal salt to provide a metal-organophosphorus salt, calcining said cured carbon body to decompose said metal-organophosphorus salt to provide a metal metaphosphate and recovering a carbon composite having said metal metaphosphate uniformly distributed therethrough and continuously coated on the surface thereof.

REFERENCES:
patent: 3029167 (1962-04-01), Carlson et al.
patent: 3342627 (1967-09-01), Paxton et al.
patent: 3666555 (1972-05-01), Jones
patent: 3706596 (1972-12-01), Wallouch
patent: 4292345 (1981-09-01), Kolesnik et al.

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