焼結助剤を用いた耐環境コーティングの製造方法

Japanese Patent JP5875753

B2

A method for making an environmental barrier coating (12) using a sintering aid comprising applying a bond coat layer (14) to a ceramic component (10); combining at least water, a primary transition material comprising a rare earth disilicate, or a doped rare earth disilicate to produce a transition layer slurry; combining at least water, and a primary outer material comprising a rare earth monosilicate or a doped rare earth monosilicate to produce an outer layer slurry; combining at least water, and a primary compliant material comprising BSAS or a rare earth doped BSAS to produce a compliant layer slurry; applying at least the transition layer slurry, and any one or more of the outer layer slurry, and the compliant layer slurry; and sintering the component to produce the environmental barrier coating (12) having at least the bond coat layer, a transition layer (16) and any of an outer layer (20) or a compliant layer (18) wherein at least one of the transition layer, the outer layer, or the compliant layer further comprises at least one slurry sintering aid and wherein a reaction between the primary materials and the slurry sintering aid results in the transition layer comprising a porosity of from 0% to about 15% by volume of the transition layer, the outer layer comprising a porosity of from 0% to about 30% by volume of the outer layer, and the compliant layer comprising a porosity of from about 0% to about 30% by volume of the compliant layer.

Glenn Harold Kirby
Brett Allen Bootwell
Jessica El Subit

JP2010169897A

March 02, 2016

July 29, 2010

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GENERAL ELECTRIC COMPANY

C04B41/89; C04B41/87; F01D5/28; F01D25/00; F02C7/00; F23R3/42

JP2006052466A
JP2007229704A
JP2007084421A
JP2009149491A
JP2009149489A
JP2009149492A
JP60067601A

Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa

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