Patent ID: 6756112
Filing Date: 2004-06-29
Classification: C04B,Y10S,Y10T

Abstract:
A process for manufacturing a high-temperature fiber-reinforced carbon-carbon composite material of essentially uniform density, which comprises the steps of:(a) selecting a fiber/matrix material combination; (b) providing a fiber preform of desired shape and fiber placement; (c) selecting at least one monomer from the group consisting of naphthalene, anthracene, methylnaphthalene, ethylnaphthalene, tetrahydronaphthalene, pyrene, pentacene, phenanthrene, methylphenanthrene, and ethylphenanthrene; (d) impregnating said fiber preform with said monomer; (e) polymerizing said monomer material in-situ in a single phase process into a pre-carbon polymer of desired molecular weight; (f) pyrolyzing said pre-carbon polymer to form a carbon matrix material; and (g) repeating steps (d)-(f) to further density said preform.