Patent ID: 7012035

Claim:
Material consisting of a fibre composite ceramic, comprising a) a fabric or cluster of polycrystalline, stoichiometrically assembled silicon carbide fibres that at room temperature have a thermal conductivity of about 64 W/mK, or carbon fibers with a thermal conductivity of ≧64 W/mK, wherein the fibres extend in the x-, y-, and z-directions, with at least 10% of the total amount of fibre being oriented in the z-direction of the material, b) a crystalline matrix of β-silicon carbide, which is created essentially on the fibres by a CVI process, c) a matrix component of β-silicon carbide, which in a polymer infiltration and pyrolysis process, starting from a suspension of silicon carbide powder in a polymer, is created in pores of the fabric and/or cluster structure, and d) a further matrix component of β-silicon carbide, which is created in cracks and pores of the material, produced in the preceding pyrolysis process, by a CVI process.