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Method of making a multi-perforated part out of ceramic matrix composite material

  • US 20040221941A1
  • Filed: 02/25/2004
  • Published: 11/11/2004
  • Est. Priority Date: 03/04/2003
  • Status: Active Grant
First Claim
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1. A method of making a multi-perforated part out of ceramic matrix composite material, the method comprising the steps consisting in:

  • preparing a fiber preform for constituting the fiber reinforcement of the composite material;

    consolidating the preform by depositing within it sufficient matrix phase for binding the fibers to one another, but without densifying the preform completely;

    putting a plurality of pins of rigid material into place through the consolidated preform;

    continuing densification of the consolidated preform provided with the pins by depositing at least one ceramic matrix phase; and

    eliminating at least a portion of each pin so as to leave a calibrated perforation passing through the part, the pins being made at least in part out of a material that can be eliminated by applying a treatment that does not affect the ceramic material of the matrix.

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