Silicon carbide fibers having a high strength and a method...

Details Silicon carbide fibers having a high strength and a method... Silicon carbide fibers having a high strength and a method...

D - Textiles, Paper

01

F

18/576

D01F 9/08 (2006.01)

Patent

CA 1107926

ABSTRACT OF THE DISCLOSURE A method for producing a silicon carbide fiber having a high tensile strength which comprises (1) preparing a spinning solution from at least one organosilicon high molecular weight compound having a softening point of higher than 50°C, in which silicon and carbon are the main skeleton components, and spinning said spinning solution into a fiber, (2) preliminarily heating the spun fiber at a temper- ature of 350°-800°C under vacuum or a non-oxidizing atmosphere to volatilize low molecular weight compound contained therein, and (3) baking the thus treated fiber at a temperature of 800°-2,000°C under vacuum or at least one non-oxidizing atmosphere selected from the group consisting of an inert gas, CO gas and hydrogen gas, to form said silicon carbide fiber.

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