Bruce R Bond

US Patent:

6627019, Sep 30, 2003

Filed:

Dec 18, 2000

Appl. No.:

09/739722

Inventors:

David C. Jarmon - Kensington CT 06037
Xiaolan Hu - South Windsor CT 06074
Steven Wayne Burd - Cheshire CT 06410
Christopher Dale Jones - Suffield CT 06078
Stephen K. Kramer - Cromwell CT 06416
Christopher L. Kogstrom - North Palm Beach FL 33408
Nikolaos Napoli - Jensen Beach FL 34957
Bruce Bond - Rochester NH 03867

International Classification:

B32B 3100

US Classification:

156 8911, 156 8926, 156155, 264610, 264640, 264642

Abstract:

A ceramic matrix composite part having elongated cooling channels within the wall thereof is manufactured by inserting decomposable inserts within a woven ceramic fiber preform. The inserts are tows of continuous carbon fibers surrounded by a carbonaceous filler, and are inserted where the channels are desired. The preform, with the inserts in place, is disposed within a mold. A ceramic matrix material is added and the fiber preform is consolidated with the ceramic matrix material. The consolidated part is then heated to thermally decompose the inserts to create the elongated channels within the part. The inserts may be flexible and woven into the preform using an automated weaving loom, or they may have limited flexibility and be inserted by machine or by hand.