Patent ID: 7908867

Claim:
An apparatus for use in high temperature applications, the apparatus comprising a hybrid ceramic structure comprising: a ceramic matrix composite (CMC) wall, at least a portion of which comprises sinusoidal waves, the waves extending a full thickness of the wall to define a first wavy surface and an opposed second wavy surface; and a ceramic insulating layer comprising a proximal surface bonded with the first wavy surface and comprising a distal surface for exposed to a combustion gas; wherein the waves, on a linearized basis, have a thickness of 1 to 10 millimeters, an amplitude excluding the thickness of at least 2 millimeters, the waves amplitude further being 1.5 to 6.0 times the thickness, and a period of 1 to 4 times the wave amplitude; and wherein the waves of the second wavy surface are exposed for an effective backside cooling, and the first wavy surface and a varying thickness of the ceramic insulating layer define a contour of the distal surface.