Coating processes – Coating by vapor – gas – or smoke – Metal coating
Patent
1981-12-04
1983-08-30
Childs, Sadie L.
Coating processes
Coating by vapor, gas, or smoke
Metal coating
204192C, 427 34, 4272481, 4272557, 427328, 427348, 4273722, 4274192, 4274193, 427380, 427405, 4274197, C23C 1100, C23C 1300
Patent
active
044016972
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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Bunshah "High-Rate Evaporation/Deposition Processes. . . . " J. Vac. Sci. Technol. vol. 11, No. 4, pp. 814-819, Jul. 1, Aug. 1974.
Stecura, "Effects of Compositional Changes on the Performance of a Thermal Barrier Coating System" NASA Tech. Mem. 78976, 1979, "Plasma Deposited MCrAlY Airfoil & Zirconia/MCrAlY Thermal Barrier Coatings" Union Carbide, 1976.
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Busch, "Develop-Sputter Deposited Graded Metal-ZrO.sub.2 Coating", Battelle Pacific Northwest Lab. Contract No. N00024-75-C-4333, pp. 1-23, 1976.
Childs Sadie L.
Sohl Charles E.
United Technologies Corporation
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