Patent ID: 6759117
Filing Date: 2004-07-06
Classification: C04B,F16D,Y10T

Abstract:
A multilayer ceramic composite, comprising:at least one composite material forming a supporting zone and containing oxidation-sensitive reinforcing fibers, said composite material includes a matrix containing at least one of a mass proportion of at least 25% SiC, further phases selected from the group consisting of phases having Si and phases having Si alloys, and carbon selected from the group consisting of carbon in elemental form and a carbon compound; at least one ceramic surface layer having reinforcing fibers, said ceramic surface layer including a matrix containing at least one of a mass proportion of at least 25% SiC, further phases selected from the group consisting of phases having Si and phases having Si alloys, and carbon selected from the group consisting of carbon in elemental form and a carbon compound; and at least one protective layer having a matrix composed substantially of at least one component of the matrix of one of said supporting zone and said ceramic surface layer, said protective layer disposed between said supporting zone and said ceramic surface layer and containing additives whose oxides are low melting point glasses having a melting point of at most 1250Â° C.