公开(公告)号：JP2002234777A

公开(公告)日：2002-08-23

申请号：JP2001384436

申请日：2001-12-18

Applicant: UNITED TECHNOLOGIES CORP ,  ALBANY INTERNATL TECHNIWEAVE I

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

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

Abstract: PROBLEM TO BE SOLVED: To provide a process of forming slender channels having a complex pattern and a small radius of curvature in the thin walls of ceramic matrix composite parts. SOLUTION: The ceramic matrix composite parts with slender cooling channels in the walls are made by inserting decomposable inserts into woven ceramic fiber preforms. Each of the inserts is a tow of continuous carbon fibers enclosed with a carbonaceous filler and the inserts are inserted in positions in which channels are required. The preforms with the inserts in the prescribed positions are disposed in molding tools. A ceramic matrix material is added and the fiber preforms are united with the ceramic matrix material. The united parts are then heated to thermally decompose the inserts and to form slender channels in the parts. The inserts are flexible and can be woven in the preforms using an automatic loom or have limited flexibility and can be inserted by machine or by hand.

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.