Method of increasing the strength of carbon and graphite members

Details Method of increasing the strength of carbon and graphite members Method of increasing the strength of carbon and graphite members

1978-01-19

1982-12-28

Smith, Ronald H.

Coating processes

Heat decomposition of applied coating or base material

Coating decomposed to form carbide or coating carbonized

264 295, 264 296, 423445, 423448, 427379, 4274343, B05D 308

Patent

active

043661912

ABSTRACT:
Increasing the strength and improving other properties of porous carbon or graphite bodies by immersing the porous body in a mixture containing 35-70% hardenable resin and 30 to 65% volatile solvent to impregnate pores. The impregnated porous body is heated to 120.degree. to 180.degree. C. to harden the resin. Carbonization of the body is effected by heating in an inert atmosphere at a rate of at least 3 K/hr to 800.degree.-1300.degree. C. Improved strength bodies are obtained with a single impregnation and single carbonizing step.

REFERENCES:
patent: 3462289 (1969-08-01), Rohl et al.
patent: 3810780 (1974-05-01), Ardary et al.
patent: 3917884 (1975-11-01), Jahn
patent: 4100322 (1978-07-01), Seibold et al.

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