General Electric Company

Julie Marie Chapman

Bernard Patrick Bewlay

Bangalore Aswatha Nagaraj

Venkat Subramaniam Venkataramani

Byron Andrew Pritchard, Jr

Ambarish Jayant Kulkarni

Douglas Gerard Konitzer

Nripendra Nath Das

Hrishikesh Keshavan

Mehmet Muhittin Dede

Larry Steven Rosenzweig

Shankar Sivaramakrishnan

Robert Eckert

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.

Thermal barrier system with bond coat barrier

A coated component, along with methods of its formation, restoration, and use, is provided. The coated component may include a substrate defining a surface; a thermal barrier coating on the surface of the substrate; a layer of environmental contaminant compositions (e.g., CMAS) on the thermal barrier coating; and a chemical barrier coating on the layer of environmental contaminant compositions.

CMAS barrier coating for a gas turbine engine having a reactive material that reacts with a layer of environmental contaminant compositions and method of applying the same

Coating systems and processes by which the coating systems can be deposited to be resistant to contaminants, and particularly resistant to infiltration and damage caused by CMAS. The coating systems include inner and outer ceramic layers. The inner ceramic layer consists essentially of zirconia stabilized by about 6 to about 9 weight percent yttria and optionally contains greater than 0.5 to 10 weight percent hafnium oxide. The outer ceramic layer overlies and contacts the inner ceramic layer to define the outermost surface of the coating system. The outer ceramic layer consists essentially of zirconia stabilized by about 25 to about 75 weight percent yttria, has a thickness that is less than the thickness of the inner ceramic layer and further contains greater than 0.5 to 10 weight percent hafnium oxide and optionally 1 to 10 weight percent tantalum oxide. The outer ceramic layer has a porosity level that is lower than that of the inner ceramic layer.

Thermal barrier coating systems and processes therefor

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West Chester, OH, United States of America

Julie Marie Chapman