Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CMAS-RESISTANT TOPCOAT FOR ENVIRONMENTAL BARRIER COATINGS
An environmental barrier coating topcoat for improved resistance to calcium-magnesium-aluminosilicate (CMAS) degradation is disclosed. The CMAS mitigation compositions are based on spinel-containing materials. A CMAS-resistant multilayer structure on a substrate, the multi-CMAS-resistant topcoat 140 layer structure including a bond coating layer on the substrate; a hermetic EBC layer on the bond coating layer; and a CMAS-resistant topcoat layer including at least one of AB2O4 materials (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe or combinations thereof; and B=Al, Fe, Cr, Co, V or combinations thereof); AB2O4 materials mixture with AxOy (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe); AB2O4 materials mixture with BxOy (B=Al, Fe, Cr Co, V); AB2O4 materials mixture with RE2Si2O7 or RE2SiO5 silicate (RE=rare earth material); AB2O4 with rare earth oxides-stabilized Zirconia; AB2O4 with rare earth oxides-stabilized Hafnia; AB2O4 with aluminosilicates; AB2O4 with rare earth garnets; and MgO, NiO, Co2O3, Al2O3.
CMAS-RESISTANT TOPCOAT FOR ENVIRONMENTAL BARRIER COATINGS
An environmental barrier coating topcoat for improved resistance to calcium-magnesium-aluminosilicate (CMAS) degradation is disclosed. The CMAS mitigation compositions are based on spinel-containing materials. A CMAS-resistant multilayer structure on a substrate, the multi-CMAS-resistant topcoat 140 layer structure including a bond coating layer on the substrate; a hermetic EBC layer on the bond coating layer; and a CMAS-resistant topcoat layer including at least one of AB2O4 materials (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe or combinations thereof; and B=Al, Fe, Cr, Co, V or combinations thereof); AB2O4 materials mixture with AxOy (A=Mg, Ni, Co, Cu, Mn, Ti, Zn, Be, Fe); AB2O4 materials mixture with BxOy (B=Al, Fe, Cr Co, V); AB2O4 materials mixture with RE2Si2O7 or RE2SiO5 silicate (RE=rare earth material); AB2O4 with rare earth oxides-stabilized Zirconia; AB2O4 with rare earth oxides-stabilized Hafnia; AB2O4 with aluminosilicates; AB2O4 with rare earth garnets; and MgO, NiO, Co2O3, Al2O3.
CMAS-RESISTANT TOPCOAT FOR ENVIRONMENTAL BARRIER COATINGS
CMAS-RESISTENTE DECKSCHICHT FÜR UMWELTBARRIEREBESCHICHTUNGEN
COUCHE DE FINITION RÉSISTANTE AU CMAS POUR REVÊTEMENTS DE BARRIÈRE ENVIRONNEMENTALE
CHEN DIANYING (Autor:in)
15.01.2025
Patent
Elektronische Ressource
Englisch
CMAS-RESISTANT ENVIRONMENTAL BARRIER AND THERMAL BARRIER COATINGS
| Europäisches Patentamt | 2023