Stock material or miscellaneous articles – All metal or with adjacent metals – Microscopic interfacial wave or roughness
Patent
1980-01-07
1982-03-23
Lewis, Michael L.
Stock material or miscellaneous articles
All metal or with adjacent metals
Microscopic interfacial wave or roughness
428632, 428623, 428629, 428633, 428678, 428926, B32B 324, B32B 1514
Patent
active
043213103
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 lyaer which exists between the MCrAlY layer and the columnar ceramic layer provides for the adherence of the columnar layer to the MCrAlY layer. An important feature of the invention is that the interface between the MCrAlY layer and the alumina layer has a low surface roughness and this greatly improves the columnar ceramic layer adherence.
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Ruckle Duane L.
Ulion Nicholas E.
Lewis Michael L.
Sohl Charles E.
United Technologies Corporation
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