Thermal barrier system with bond coat barrier
AssigneeGeneral Electric Company
InventorsJulie Marie Chapman, Robert Eckert, Nripendra Nath Das
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Abstract
A coating system disposed on a surface of a substrate is provided. The coating system includes a bond coating on the surface of the substrate, a protective coating on the bond coating, a thermal barrier coating on the protective coating, and a protective agent disposed within at least some of the voids of the thermal barrier coating. The protective coating is constructed from a ceramic material, and the thermal barrier coating defines a plurality of elongated surface-connected voids. Methods are also generally provided for forming such a coating system.
Claims20
A coating system disposed on a surface of a substrate, the coating system comprising:
- a bond coating on the surface of the substrate;
- a protective coating on the bond coating, wherein the protective coating comprises a ceramic material;
- a thermal barrier coating on the protective coating, wherein the thermal barrier coating defines a plurality of elongated surface-connected voids;
- and
- a protective agent disposed within at least some of the voids of the thermal barrier coating.
Dependencies are inferred from the claim text.