Process for the manufacture of compact composite carbonaceous ma

Details Process for the manufacture of compact composite carbonaceous ma Process for the manufacture of compact composite carbonaceous ma

1983-03-21

1985-06-25

Straub, Gary P.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423445, 423448, 264 295, C01B 3104, C01B 3102

Patent

active

045253374

ABSTRACT:
A method for the high temperature, high pressure impregnation of thick woven carbon substrates with pitches to form carbon impregnated carbon bodies. The use of pitch with high (about 30%) levels of free carbon as the impregnating pitch reduces the number of cycles to obtain a product of given density as compared to carbon free pitch. The impregnation is conducted in hydrogen permeable aneroid vessels.

REFERENCES:
patent: B414028 (1976-02-01), Overholser et al.
patent: 3246056 (1966-04-01), Shea, Jr. et al.
patent: 3249964 (1966-05-01), Shalter
patent: 3419645 (1968-12-01), Yietzka et al.
patent: 3517092 (1970-06-01), Peterson
patent: 4178413 (1979-12-01), De Munda
patent: 4215161 (1980-06-01), Seibold et al.
patent: 4226900 (1980-10-01), Carlson
Chard et al., Advanced High Pressure Graphite Processing, Graphite Processing Technology ACS Symposium Serials #21, Chapter 14, 1974, pp. 155-171.

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