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Title:
LOCAL COATING FILM OF LOW-ACTIVITY ALUMINUM COMPOUND AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3880709
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide the coating film of an aluminum compd. capable of being easily applied on the selected part of a metallic article and highly resistant to oxidation and thermal fatigue.
SOLUTION: The local coating film of a low-activity aluminum for a metallic article is formed by arranging a tape coating film material on a part of the article. The coating film material contains a binder, a halide activator, an aluminum source and an inert ceramic material. The coating film material and article are heated at 1800°F (982°C) to 2050°F (1121°C) for 4 to 7hr in an inert atmosphere. Consequently, the local coating film of a low-activity aluminum compd. having an aluminum coating film microstructure including two different regions, i.e., an inner diffusion region and an outer region contg. 20-28wt.% aluminum, is formed.


Inventors:
ウォールター イー.オルソン
ノルマン ピエトルスカ
ピーター ジョン ドラーギ
Application Number:
JP28636297A
Publication Date:
February 14, 2007
Filing Date:
October 20, 1997
Export Citation:
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Assignee:
UNITED TECHNOLOGIES CORPORATION
International Classes:
C23C10/30; C23C24/08; C23C10/04; C23C10/48; C23C26/00; (IPC1-7): C23C24/08
Domestic Patent References:
JP3044484A
JP63190158A
JP50124842A
Foreign References:
WO1994010357A1
Attorney, Agent or Firm:
橋本 剛
富岡 潔