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Wavy CMC Wall Hybrid Ceramic Apparatus

  • US 20090071160A1
  • Filed: 09/14/2007
  • Published: 03/19/2009
  • Est. Priority Date: 09/14/2007
  • Status: Active Grant
First Claim
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1. 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 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;

    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.

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