公开(公告)号：DE60138173D1

公开(公告)日：2009-05-14

申请号：DE60138173

申请日：2001-12-18

Applicant: UNITED TECHNOLOGIES CORP

Inventor： JARMON DAVID C ,  HU XIAOLAN ,  BURD STEVEN WAYNE ,  JONES CHRISTOPHER DALE ,  KRAMER STEVEN K ,  KOGSTROM CHRISTOPHER L ,  NAPOLI NICOLAOS ,  BOND BRUCE

IPC: C04B35/80 ,  F01D5/18 ,  C04B38/06 ,  F01D5/28 ,  F01D9/02 ,  F02C7/00

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.