Apparatus and method to reduce wear and friction between cmc-to-metal attachment and interface
AssigneeGeneral Electric Company
InventorsRonald Ralph CAIRO, Jason Robert PAROLINI, John McConnell DELVAUX
Life of this patent
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Abstract
An apparatus to reduce wear and friction between CMC-to-metal attachment and interface, including a metal layer configured for insertion between a surface interface between a CMC component and a metal component. The surface interface of the metal layer is compliant relative to asperities of the surface interface of the CMC component. A coefficient of friction between the surface interface of the CMC component and the metal component is about 1.0 or less at an operating temperature between about 300° C. to about 325° C. and a limiting temperature of the metal component.
Claims20
An apparatus to reduce wear and friction between CMC-to-metal attachment and interface, comprising:
- a metal layer configured for insertion between a surface interface between a CMC component and a metal component;
- wherein the surface interface of the metal layer is compliant relative to asperities of the surface interface of the CMC component, a coefficient of friction between the surface interface of the CMC component and the metal component being about 0.4 or less at an operating temperature between about 300° C. to about 325° C. and a limiting temperature of the metal component.
An apparatus for use in a heated environment comprising:
- a CMC component;
- a metal component having a surface interface with the CMC component;
- and
- a metal layer configured for insertion between the surface interface between the CMC component and the metal component;
- wherein the surface interface of the metal layer is compliant relative to asperities of the surface interface of the CMC component, a coefficient of friction between the surface interface of the CMC component and the metal component being about 1.0 or less at an operating temperature between about 300° C. to about 325° C. and a limiting temperature of the metal component.
A method to reduce wear and friction between CMC-to-metal attachment and interface, comprising:
- providing a metal layer configured for insertion between a surface interface between a CMC component and a metal component, the surface interface of the metal layer being compliant relative to asperities of the surface interface of the CMC component, a coefficient of friction between the surface interface of the CMC component and the metal component being about 1.0 or less at an operating temperature between about 300° C. to about 325° C. and a limiting temperature of the metal component;
- and
- inserting the layer between the surface interface between the CMC component and the metal component;
- and
- operating the CMC component, the layer and the metal component at the operating temperature.
Dependencies are inferred from the claim text.