General Electric Company

Guruvenket Srinivasan

Glen Harold Kirby

Anant Achyut Setlur

Julin Wan

Reza Sarrafi-Nour

Nicholas Edward Antolino

Nathaniel Patrick Brown

Jeffery Allen Bross

Justin Michael Nagy

Alan David Gerken

Taryn Elizabeth Hewitt

Environmental barrier coatings including a bondcoat layer including silicon and a rare earth silicate-based hermetic layer and rare earth silicate-based non-hermetic layer are provided. The rare earth silicate-based hermetic layer is deposited on the bondcoat via a thermal spray process and has an elastic modulus ranging from 100 GPa to 180 GPa. The at least one rare earth silicate-based non-hermetic layer is deposited on the rare earth silicate-based hermetic layer and has an elastic modulus ranging from 50 GPa to 100 GPa. Coated gas turbine engine components and methods for coating gas turbine engine components are also provided.

Environmental barrier coatings

A method for processing a component is provided and includes masking a first portion of the component with a maskant. The maskant includes a slurry having a plurality of particles in a fluid carrier. The plurality of particles comprises at least one of silicon, carbon, one or more rare earth disilicates, monosilicates or oxides, and combinations thereof. The method includes depositing a silicon-based coating on a second portion of the component via a chemical vapor deposition process and removing the maskant and any overlying silicon-based coating from the first portion of the component.

Methods for coating a component

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Loveland, OH, United States of America

Guruvenket Srinivasan