LOCALIZED PARTICLE ADDITIONS TO REDUCE DEFECTS IN CERAMIC MATRIX COMPOSITES CAUSED BY COMPLEX GEOMETRY PREFORMING
A method of forming a ceramic matrix composite component includes forming a fiber preform (20), the fiber preform (20) including a plurality of ceramic fiber plies (22), a non-reduced fiber region having an areal weight, and a reduced fiber region characterized by a reduced areal weight less than th...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
07.12.2022
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Subjects | |
Online Access | Get full text |
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Summary: | A method of forming a ceramic matrix composite component includes forming a fiber preform (20), the fiber preform (20) including a plurality of ceramic fiber plies (22), a non-reduced fiber region having an areal weight, and a reduced fiber region characterized by a reduced areal weight less than the areal weight of the non-reduced fiber region by at least 5 percent. The method further includes selectively applying ceramic particles (30) to the reduced fiber region in such manner as to avoid applying the ceramic particles (30) to the non-reduced fiber region, and subsequently densifying the preform (20). |
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Bibliography: | Application Number: EP20220169520 |