Title:
ケイ素含有材料用の、遷移層を有する熱/環境バリヤーコーティング
Document Type and Number:
Japanese Patent JP4927385
Kind Code:
B2
Abstract:
An article (10) comprising a substrate (12) formed of a silicon-comprising material, such as an article (10) exposed to the hostile thermal environment of a gas turbine engine. The article (10) further comprises an environmental barrier layer (16), e.g., an alkaline earth metal aluminosilicate, and a top coat (18) comprising zirconia or hafnia stabilized with an oxide of a metal selected from the group consisting of magnesium, calcium, scandium, yttrium, and lanthanide metals, and mixtures thereof. The article (10) further comprises a transition layer (20) between the environmental barrier layer (16) and the top coat (18), the transition layer (20) comprising zirconia or hafnia stabilized with an oxide of a metal selected from the group consisting of magnesium, calcium, scandium, yttrium, and lanthanide metals; and a low CTE oxide selected from the group consisting of niobia and tantala; and mixtures thereof. A method for preparing a thermal/environmental barrier coating system (14)
Inventors:
Irene Spittsburgh
Christine Gavan
Bangalore-Aswasa-Nagaraja
Brian Thomas Hazel
David Joseph Mitchell
Christine Gavan
Bangalore-Aswasa-Nagaraja
Brian Thomas Hazel
David Joseph Mitchell
Application Number:
JP2005334181A
Publication Date:
May 09, 2012
Filing Date:
November 18, 2005
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C04B41/89; B05D7/24; B32B9/00; C23C28/00; C23C30/00; F01D5/14; F01D5/18; F01D5/28; F01D9/02; F01D25/00; F02C7/00; F23R3/42
Domestic Patent References:
| JP2006200037A | ||||
| JP2001279473A | ||||
| JP2003192470A | ||||
| JP2002511833A | ||||
| JP2003268572A |
Foreign References:
| US5985470 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa