Silicon carbide fibers essentially devoid of whiskers and products made therefrom
AssigneeAdvanced Composite Materials Corporation
InventorsDerek J. Angier, James F. Rhodes, William M. Rogers
Life of this patent
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Abstract
Silicon carbide fibers are produced by mixing discontinuous isotropic carbon fibers with a silica source and exposing the mixture to a temperature of from about 1450° C. to about 1800° C. The silicon carbide fibers are essentially devoid of whiskers have excellent resistance to oxidation and excellent response to microwave energy, and can readily be formed into a ceramic medium employing conventional ceramic technology. The fibers also may be used for plastic and metal reinforcement.
Claims21
Discontinuous silicon carbide fiber essentially devoid of whiskers, essentially devoid of boron, and having less than about 1.25 wt percent nitrogen and an apparent density of greater than about 1.65 g/cc.
Dependencies are inferred from the claim text.