Patent ID: 9050769
Filing Date: 2015-06-09
Classification: B28B,B29D,B32B,C04B,F01D,F05D,Y10T

Abstract:
1. A method of forming pre-form ceramic matrix composite (CMC) cavity for a ceramic matrix component comprising steps of: providing a mandrel; applying a base ply to the mandrel; laying-up at least one CMC ply on the base ply; removing the mandrel; densifying the base ply and the at least one CMC ply; and wherein the densified base ply and at least one CMC ply form the pre form ceramic matrix component cavity having a desired geometry and a cavity formed therein, the cavity extending along an interior space in the component and wherein the cavity remains when the pre-form CMC cavity is subjected to subsequent laying up of additional CMC plies, autoclaving and densification.