Coating processes – Coating by vapor – gas – or smoke
Patent
1981-12-04
1983-09-20
Childs, S. L.
Coating processes
Coating by vapor, gas, or smoke
2041291, 20412935, 427 34, 427250, 427328, 427331, 427380, 427405, 4274192, 4274193, 4274197, C23C 1100, C23C 1300
Patent
active
044056605
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. 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.
REFERENCES:
patent: 3516874 (1970-06-01), Maker et al.
patent: 3528861 (1970-09-01), Elam et al.
patent: 3837894 (1974-09-01), Tucker
patent: 3873347 (1975-03-01), Walker et al.
patent: 3890456 (1975-06-01), Dils
patent: 3945893 (1976-03-01), Ishimori et al.
patent: 4024294 (1977-05-01), Rairden
patent: 4095003 (1978-06-01), Weatherly et al.
patent: 4101715 (1978-07-01), Rairden
patent: 4109031 (1978-08-01), Marscher
patent: 4110893 (1978-09-01), Elam et al.
patent: 4145481 (1979-03-01), Gupta et al.
patent: 4273824 (1981-06-01), McComas et al.
Boone et al., "Some Effects of Structure and Composition . . . ", J. Vac. Sci. Technol., vol. 11, No. 4, pp. 641-646, Jul./Aug., 1974.
Bunshah, "High-Rate Evaporation/Deposition Processes . . . ", J. Vac. Sci., Technol., vol. 11, No. 4, pp. 814-819, Jul./Aug. 1974.
Stecura, "Effects of Compositional Charges on the Performance of a Thermal Barrier Coating System", NASA Tech. Mem. 78976, 1979.
"Plasma Deposition MCrAlY Airfoil & Zirconia/MCrAlY Thermal Barrier Coatings", Union Carbide, 1976.
Fairbanks, "Proceedings of 1974 Gas Turbine Materials in the Marine Environment Conference", MCIC Report Jun. 1975.
Busch, "Develop Sputter Deposited, Graded Metal-ZrO.sub.2 Coating", Battelle Pacific Northwest Lab. Contract No. N00024-75-C-4333, pp. 1-23, 1976.
Ruckle Duane L.
Ulion Nicholas E.
Childs S. L.
Sohl Charles E.
United Technologies Corporation
LandOfFree
Method for producing metallic articles having durable ceramic th does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing metallic articles having durable ceramic th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing metallic articles having durable ceramic th will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-588273