MATERIAL SYSTEMS FOR REPAIR OF THERMAL BARRIER COATING AND METHODS THEREOF

Methods for repairing a thermal barrier coating (140) deposited on a component (100) with localized spallation (150) of the thermal barrier coating (140) includes depositing a primer slurry on a thermally grown oxide (132) of the component (100) exposed by the localized spallation (150), depositing...

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Bibliographic Details
Main Authors SAHA, Atanu, KULKARNI, Ambarish, NAGESH, Mamatha, KESHAVAN, Hrishikesh, BEWLAY, Bernard
Format Patent
LanguageEnglish
French
German
Published 13.03.2024
Subjects
ARTIFICIAL STONE
BLASTING
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
LIME, MAGNESIA
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
METALLURGY
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
REFRACTORIES
SLAG
STEAM ENGINES
TREATMENT OF NATURAL STONE
WEAPONS
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Summary:Methods for repairing a thermal barrier coating (140) deposited on a component (100) with localized spallation (150) of the thermal barrier coating (140) includes depositing a primer slurry on a thermally grown oxide (132) of the component (100) exposed by the localized spallation (150), depositing a ceramic slurry on the primer slurry, and heating the primer slurry and the ceramic slurry. The primer slurry includes a primer that includes a metal or a metal oxide. The ceramic slurry includes a ceramic material, a ceramic slurry binder material, and a ceramic slurry fluid carrier. Heating the primer slurry and the ceramic slurry forms a first chemical bond (210) between the primer and the thermally grown oxide (132) and a second chemical bond (230) between the primer and the ceramic material.
Bibliography:Application Number: EP20230195249