AIRFOIL WITH BUFFER LAYER TO ABSORB THERMAL MISMATCH

An airfoil (60) includes a ceramic matrix composite airfoil core (62) that defines an airfoil portion (66) and a root portion (68). The ceramic matrix composite airfoil core is subject to core thermal growth. A platform (64) includes a ceramic matrix composite that wraps around the root portion. The...

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Bibliographic Details
Main Author MCCAFFREY, Michael G
Format Patent
LanguageEnglish
French
German
Published 02.08.2023
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Summary:An airfoil (60) includes a ceramic matrix composite airfoil core (62) that defines an airfoil portion (66) and a root portion (68). The ceramic matrix composite airfoil core is subject to core thermal growth. A platform (64) includes a ceramic matrix composite that wraps around the root portion. The platform is subject to platform thermal growth. A buffer layer (78) is located between the root portion and the platform. The buffer layer absorbs a mismatch between the core thermal growth and the platform thermal growth.
Bibliography:Application Number: EP20230164853