In-situ method and composition for repairing a thermal barrier coating

In-situ Verfahren und Zusammensetzung zur Reparatur einer Wärmedämmschicht

Procédé in-situ et composition pour la réparation d'un revêtement de barrière thermique

Abstract

An in-situ method for repairing a thermal barrier coating (16) deposited on a component (14) that has suffered localized spallation including depositing a ceramic paste on a surface area of the component (14) exposed by the localized spallation, the ceramic paste including a ceramic material in a binder material, the ceramic material including solid zirconia particles, the binder material including a silicone compound. The method also including heating the binder material to yield a repair coating (40) that covers the surface area of the component (14), the silicone compound promoting the bonding of the solid zirconia particles.

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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    EP-1088908-A2April 04, 2001General Electric CompanyMéthode pour le lissage de la surface d'une couche de protection
    EP-1197585-A2April 17, 2002General Electric CompanyMethod for repairing a thermal barrier coating and repaired coating
    FR-2830857-A1April 18, 2003Pechiney AluminiumPrecursor for producing refractory coatings comprises a silicone resin, an organic solvent and an inorganic filler capable of reacting with the resin to form a cohesive refractory layer after calcination
    GB-2319248-AMay 20, 1998Gen ElectricZirconia-containing coating compositions and their application to metal substrates

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