Patent ID: 7754126
Filing Date: 2010-07-13
Classification: C04B,F01D,F05D,Y02T,Y10T

Abstract:
1. A method of manufacturing a turbine engine component comprising the steps of: providing a plurality of ceramic cloth plies, each ply comprising a plurality of tows, wherein the tows include ceramic fiber tows and wherein at least one ply further includes fugitive fiber tows; laying up the plurality of plies in a preselected arrangement to form a turbine engine component shape; oxidizing the fugitive fiber tows to produce fugitive fiber void regions in the at least one fugitive fiber containing ply; and after the steps of laying up and oxidizing, slurry casting the component by steps comprising: wherein the step of providing a woven ceramic cloth comprises providing a woven ceramic cloth having at least one ply with more tows in a warp direction than a weft direction and wherein the ratio of fugitive fibers to ceramic fibers is the same in both the warp and weft directions.