Patent ID: 6555173
Filing Date: 2003-04-29
Classification: C04B,F16D,Y10T

Abstract:
A method of preparing a silicon carbide coated (C/C) composite, which is resistant to oxidation at above 850Â° C., the method comprising:(a) coating substantially only a surface of a C/C composite base with a reactive carbon containing composition to form a reactive carbon coated C/C composite, followed by (b) applying a silicon containing composition to the reactive carbon coated C/C composite to form a bi-layered C/C composite, (c) heating the bi-layered C/C composite to at least the melting point of silicon to form the silicon carbide coated C/C composite; and wherein the silicon containing composition is added to the reactive carbon coated C/C composite in step (b) in a concentration sufficient to have the silicon in a molar excess to the reactive carbon on the reactive carbon coated C/C composite.