METHOD FOR PERFORMING THERMAL BARRIER COATING OR REPAIRING THE SAME

PROBLEM TO BE SOLVED: To provide a method for performing thermal barrier coating on a base metal, or a method for repairing thermal barrier coating which is already performed on a lower layer aluminide dispersion film to cover the base metal through physical vapor deposition. SOLUTION: In this metho...

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Hauptverfasser:	TOMLINSON THOMAS JOHN, SCHORR DEBORAH ANNE, HEIDORN RAYMOND W, KASTRUP DAVID ALLEN, NAGARAJ BANGALORE ASWATHA, YOUNG CRAIG DOUGLAS, LANMAN EVA ZIELONKA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for performing thermal barrier coating on a base metal, or a method for repairing thermal barrier coating which is already performed on a lower layer aluminide dispersion film to cover the base metal through physical vapor deposition. SOLUTION: In this method, an aluminide dispersion film 106 is treated so as to increase adhesion to an overlay alloy bond coat layer 142 by plasma thermal spraying. Then, an overlay alloy bond coat material is plasma thermal-sprayed on the treated aluminide dispersion film to form the overlay alloy bond coat layer. A thermal barrier coating material is plasma thermal-sprayed on the overlay alloy bond coat layer to form thermal barrier coating 150. In the repairing embodiment, the thermal barrier coating with physical vapor deposition is firstly removed from the lower aluminide dispersion film. COPYRIGHT: (C)2005,JPO&NCIPI