Title:
ハフニウム-ケイ素-変性白金-アルミニウムの接合皮膜または環境皮膜を持つ物品
Document Type and Number:
Japanese Patent JP4558865
Kind Code:
B2
Abstract:
An article (20) such as a gas turbine blade or vane has a superalloy substrate (32), and a coating system (30) deposited on the substrate (32). The coating system (30) includes a protective layer (34) overlying the substrate (32), and, optionally, a ceramic thermal barrier coating layer overlying the bond coat. The protective layer (34) has an uppermost layer (72) with a composition including platinum, aluminum, and, in atom percent, from about 0.14 to about 2.8 percent hafnium and from about 2.7 to about 7.0 percent silicon, with the atomic ratio of silicon:hafnium being from about 1.7:1 to about 5.6:1.
Inventors:
Joseph David Ligny
Rangopal da Loria
William Scott Walston
Rangopal da Loria
William Scott Walston
Application Number:
JP29182799A
Publication Date:
October 06, 2010
Filing Date:
October 14, 1999
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C23C28/00; C23C10/52; C23C30/00; F01D5/28
Domestic Patent References:
| JP10068062A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa