Method for manufacturing silicon carbide whisker

Details Method for manufacturing silicon carbide whisker Method for manufacturing silicon carbide whisker

1989-11-20

1990-12-04

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 95, 501 99, 423345, 423346, 264 57, C04B 3556

Patent

active

049753924

ABSTRACT:
A method for manufacturing silicon carbide whisker which has a cross-sectional diameter of greater than about 1 .mu.m by mixing a source of silicon atom in the form of grains having a mean grain diameter of at least 50 .mu.m with a carbon atom source in the presence of an element or compound of the element, the element being yttrium, calcium, manganese, aluminum, indium, or rare earth elements in an amount from about 100 to 2,000 ppm and growing the silicon carbide whisker therefrom.

REFERENCES:
patent: 4500504 (1985-02-01), Yamamoto
patent: 4536379 (1985-08-01), Carlson et al.
patent: 4702901 (1987-10-01), Shalek
patent: 4873070 (1989-10-01), Kaji et al.
patent: 4908340 (1990-03-01), Frechette et al.

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