Title:
高温セラミック部品用の溶剤系耐環境コーティング
Document Type and Number:
Japanese Patent JP5875754
Kind Code:
B2
Abstract:
Environmental barrier coatings (12) for high temperature ceramic components, the barrier coating comprising: a bond coat layer (14); an optional silica layer (15); and at least one transition layer (16) including: from about 85% to about 99% by volume of the transition layer of a primary transition material comprising a rare earth disilicate, or a doped rare earth disilicate; and from 1% to about 15% by volume of the transition layer of a secondary material selected from the group consisting of Fe 2 O 3 , iron silicates, rare earth iron oxides, Al 2 O 3 , mullite, rare earth aluminates, rare earth aluminosilicates, TiO 2 , rare earth titanates, Ga 2 O 3 , rare earth gallates, NiO, nickel silicates, rare earth nickel oxides, Lnb metals, Lnb 2 O 3 , Lnb 2 Si 2 O 7 , Lnb 2 SiO 5 , borosilicate glass, alkaline earth silicates, alkaline earth rare earth oxides, alkaline earth rare earth silicates, and mixtures thereof; wherein the transition layer is applied to the component as a slurry comprising at least an organic solvent, the primary transition material and at least one slurry sintering aid, and wherein a reaction between the slurry sintering aid and the primary transition material results in the transition layer comprising a porosity of from 0% to about 15% by volume of the transition layer.
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Inventors:
Glenn Harold Kirby
Brett Allen Boutwell
Brett Allen Boutwell
Application Number:
JP2010169934A
Publication Date:
March 02, 2016
Filing Date:
July 29, 2010
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C04B41/89; C04B41/87; F01D5/28; F01D25/00; F02C7/00; F23R3/42
Domestic Patent References:
| JP2009149492A | ||||
| JP2009149489A | ||||
| JP2009149491A | ||||
| JP2006052466A | ||||
| JP2007084421A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka