ABRADABLE HYBRID MATERIAL, PARTICULARLY FOR SEAL ELEMENTS IN GAS TURBINES, AND MANUFACTURING METHOD THEREOF

A hybrid CMC - ceramic foam abradable material comprises a CMC structure (10), made of a CMC, and a ceramic foam layer (11), made of a ceramic foam and defining an abradable layer (12), on at least one surface of the CMC structure (10); the CMC structure (10) comprises a solid base portion (14) and...

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Bibliographic Details
Main Authors FONT CALAFELL, Edgard, RENUSCH, Daniel, RUEDEL, Uwe Wolfgang, PAUL, Anish, BRICAUD, Cyrille Jerome
Format Patent
LanguageEnglish
French
German
Published 22.07.2020
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:A hybrid CMC - ceramic foam abradable material comprises a CMC structure (10), made of a CMC, and a ceramic foam layer (11), made of a ceramic foam and defining an abradable layer (12), on at least one surface of the CMC structure (10); the CMC structure (10) comprises a solid base portion (14) and a honeycomb pattern (15) projecting from at least one face (16) of the solid base portion (14) and having hollow cells; the CMC of the CMC structure (10) and the ceramic foam of the ceramic foam layer (11) are interpenetrated with each other at the honeycomb pattern (15).
Bibliography:Application Number: EP20190152665