Heat treatment method for silicon and carbon-containing ceramic

Details Heat treatment method for silicon and carbon-containing ceramic Heat treatment method for silicon and carbon-containing ceramic

1989-08-23

1993-08-31

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 95, C04B 3504

Patent

active

052408876

ABSTRACT:
The invention is related to a heat treatment method for silicon and carbon-containing ceramic fibers as well as fibers of the same nature with a laminated structure and having an external carbon layer.
The processing method for the invention comprises a heat treatment in vacuum, during at least three hours and at a temperature of about 1000.degree. C. This treatment yields fibers surrounded with a layer of endogenic SiO.sub.2, that is itself coated with a layer of endogenic carbon.
Said fibers can be used to make composite materials with fiber reinforcement.

REFERENCES:
patent: 4746480 (1988-05-01), Clark
J. J. Lannutti and D. E. Clark, "Sol-Gel Derived Coatings on SiC and Silicate Fibers", 6045 Ceramic Engineering and Science Proceedings, 5(1984) Jul.-Aug. No. 7/8, pp. 574-582.
American Ceramic Society Bulletin, vol. 66, No. 8, 1987, Westerville, Ohio, USA.

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