Wärmedämmendes Beschichtungssystem und Überzug mit einer Metall/Metalloxyd-Haftbeschichtigung

The present invention generally describes multilayer coating systems comprising a composite metal/ metal oxide bond coat layer. The coating systems may be used in gas turbines. The coating system comprises also a thermal barrier coating layer (e.g. YSZ), a high density metallic bond coating layer (e...

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Bibliographische Detailangaben
Hauptverfasser:	GOEDJEN, JOHN G, SLOAN, KELLY M, SABOL, STEPHEN M, VANCE, STEVEN J
Format:	Patent
Sprache:	ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING 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 COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DIFFUSION TREATMENT OF METALLIC MATERIAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WEAPONS WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	The present invention generally describes multilayer coating systems comprising a composite metal/ metal oxide bond coat layer. The coating systems may be used in gas turbines. The coating system comprises also a thermal barrier coating layer (e.g. YSZ), a high density metallic bond coating layer (e.g. MCrAlY with M=Fe,Co2Ni). The metal/metal oxide bond coat layer has preferably an MCrAlY alloy matrix and Al2O3 particles dispersed therein. The purpose of this latter layer is to form a barrier for elements from the super alloy substrate diffusing into the coating system.