METHODS FOR PRODUCING BETA-SILICON CARBIDE FIBER

원문 (중국어)

Provided herein are methods of preparing beta silicon carbide (β-SiC) fiber, comprising: immersing a carbon fiber in a molten silicon bath at a temperature of up to 1650° C. and a pressure of 0.9 to 1.1 atm in an inert atmosphere and retaining the carbon fiber in the molten silicon bath for a hold time to react the carbon fiber with silicon present in the molten silicon bath and produce β-SiC fiber. Also provided herein are methods of preparing β-SiC fiber, comprising: immersing a carbon fiber in silicon powder at a temperature of 650° C. to 800° C. to thereby coat the carbon fiber with the silicon powder, and transferring the coated carbon fiber to a heating zone and heating the silicon powder coated carbon fiber to a temperature of 1400° C. up to 1650° C. to react the carbon fiber and the silicon powder to form β-SiC fiber.