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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Bibliographic Details
Main Authors READ, Kathryn S, LAZUR, Andrew J
Format Patent
LanguageEnglish
French
German
Published 07.12.2022
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
REFRACTORIES
SLAG
TRANSPORTING
TREATMENT OF NATURAL STONE
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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).
Bibliography:Application Number: EP20220169520