Preparation of SiC whiskers

Details Preparation of SiC whiskers Preparation of SiC whiskers

1980-01-28

1981-08-18

Cooper, Jack

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

106 44, C01B 3136

Patent

active

042846129

ABSTRACT:
Organic fibers are oxidized, ground and blended with a source of silica. Heat treatment of the blend in the range of 1400.degree. to 1700.degree. C. results in the formation of SiC whiskers. Various fibers including PAN, pitch and rayon which can be processed to form carbon and/or graphite fibers can be used as the carbon source. Ashed rice hulls as the source of silica are blended with the chopped fiber to form the SiC whiskers.

REFERENCES:
patent: 3285696 (1966-11-01), Tsunoda
patent: 3412062 (1968-11-01), Johnson et al.
patent: 3503708 (1970-03-01), Spry
patent: 4014725 (1977-03-01), Schulz
Lee et al., "Am. Ceram. Soc. Bull.", vol. 54, No. 2, 1975, pp. 195-198.

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