Fugitive fiber commingling to provide loft in ceramic fiber tows
AssigneeRolls-Royce High Temperature Composites Inc.
InventorStephen Harris
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Abstract
A method of making a ceramic fiber tow and the system regarding the same may be included. The method may include commingling a plurality of ceramic fibers with a fugitive fiber to form a single ceramic fiber tow. The fugitive fiber may be positioned between at least two ceramic fibers included in the single ceramic fiber tow. The method may further include forming a porous ceramic preform including at least the single ceramic fiber tow. The method may further include removing the fugitive fiber from the ceramic fiber tow leaving a space between at least two ceramic fibers of the single ceramic fiber tow. The method may further include replacing the spaces between ceramic fibers included in the ceramic fiber tows with a ceramic matrix.
Claims11
A method comprising:
- commingling a plurality of ceramic fibers with a fugitive fiber to form a ceramic fiber tow, the fugitive fiber positioned between at least two ceramic fibers of the ceramic fiber tow;
- forming a porous ceramic preform comprising at least the ceramic fiber tow;
- removing the fugitive fiber from the ceramic fiber tow leaving a space between the at least two ceramic fibers of the ceramic fiber tow;
- infiltrating the porous ceramic preform to form a ceramic matrix composite component, the infiltrating comprising chemical vapor infiltration and/or melt infiltration, and replacing the space between the at least two ceramic fibers of the single ceramic fiber tow at least in part by a ceramic matrix.
Dependencies are inferred from the claim text.