Chemistry of inorganic compounds – Silicon or compound thereof – Binary compound
Patent
1983-10-12
1984-11-06
Bell, Mark
Chemistry of inorganic compounds
Silicon or compound thereof
Binary compound
501 88, 501 90, C04B 3556
Patent
active
044811799
ABSTRACT:
A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.
REFERENCES:
patent: 3577344 (1971-05-01), Ardary et al.
patent: 3653851 (1972-04-01), Gruber
patent: 3702279 (1972-11-01), Ardary et al.
patent: 3793204 (1974-02-01), Ardary et al.
patent: 4118464 (1978-10-01), Cutler
Bell Mark
Esposito Michael F.
Grant Edwin D.
Hamel Stephen D.
The United States of America as represented by the United States
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