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FORMING A SURFACE LAYER OF A CERAMIC MATRIX COMPOSITE ARTICLE

  • US 20160214907A1
  • Filed: 01/25/2016
  • Published: 07/28/2016
  • Est. Priority Date: 01/27/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • depositing a slurry on a surface of an impregnated porous preform using a cast to form a surface layer including a plurality of three-dimensional surface features, wherein the cast defines the negative of the three-dimensional surface features, and wherein the impregnated porous preform comprises a reinforcement material and at least one matrix precursor;

    drying the slurry to form a greenbody preform; and

    infiltrating the greenbody preform with a molten infiltrant to form a composite article including the three-dimensional surface features.

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