Patent ID: 6132542
Filing Date: 2000-10-17
Classification: B32B,C04B,Y10T

Abstract:
A method of fabricating a laminate comprising:providing a plurality of sintered ceramic layers and a plurality of fiber reinforced CMC layers;stacking alternate layers of said sintered ceramic and fiber-reinforced CMC layers to form said laminate, having between adjacent ceramic and CMC layers a ceramic/CMC interface;consolidating said fiber-reinforced CMC layers, which include a means for deflecting cracks; andbonding said stacked layers together into an integral body so that cracks do not deflect at said ceramic/CMC interface but travel across said interface and deflect within said CMC layers,wherein fabricating said laminate comprises fabricating each of said sintered ceramic layers from a plurality of tiles in a corresponding plane with said ceramic tiles abutting one another along adjacent edges of said tiles within each plane and each ceramic tile being bonded to each adjoining CMC layer along a broad face of said adjoining CMC layer, and fabricating each of said fiber-reinforced CMC layers as a continuous layer,whereby a high temperature, damage tolerant, thermal shock resistant, oxidation resistant, high strength laminate is obtained, which is resistant to wear, abrasion and has higher thermal conductivity.