Columnar grain ceramic thermal barrier coatings
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United States of America Patent
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-
Mar 23, 1982
Grant Date -
N/A
app pub date -
Jan 7, 1980
filing date -
Jan 7, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A coated article and method for producing the coated article are described. The article is coated with a system which provides protection against oxidation and corrosion and which significantly reduces the substrate temperature. An MCrAlY layer is applied to the article to be protected and a columnar grain ceramic is applied by vapor deposition to the MCrAlY coated article. An alumina layer which exists between the MCrAlY layer and the columnar ceramic layer provides for the adherence of the columnar layer to the MCrAlY layer.
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