Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming multiple superposed electrolytic coatings
Patent
1995-12-19
1997-09-16
Gorgos, Kathryn L.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming multiple superposed electrolytic coatings
205176, 205183, 205186, 205191, 205192, 205195, 205224, 205228, 427405, 427250, 4272557, 427585, 148512, 148518, 148577, 148277, B05D 136, C23C 880, C21D 500, C25D 510
Patent
active
056676638
ABSTRACT:
A ceramic thermal barrier coating layer for a superalloy article is caused to adhere to the superalloy article by applying platinum to the superalloy article and heat treating at a temperature of 1100.degree. C. to 1200.degree. C. for one hour. This causes aluminum to diffuse from the superalloy article into the platinum to form a platinum enriched outer layer which generally includes a platinum enriched gamma phase and a platinum enriched gamma prime phase. An alumina layer is formed between the platinum enriched outer layer and a ceramic coating. The platinum enriched gamma phase and the platinum enriched gamma prime phase in the outer layer reduces the migration of transition metal elements to the ceramic coating to enable a very pure alumina layer to be formed.
REFERENCES:
patent: 3677789 (1972-07-01), Bungardt et al.
patent: 3692554 (1972-09-01), Bungardt et al.
patent: 3819338 (1974-06-01), Bungardt et al.
patent: 3961910 (1976-06-01), Baladjanian et al.
patent: 3979273 (1976-09-01), Panzera et al.
patent: 3999956 (1976-12-01), Stueber et al.
patent: 4123594 (1978-10-01), Chang
patent: 4123595 (1978-10-01), Chang
patent: 4137370 (1979-01-01), Fujishiro et al.
patent: 4321310 (1982-03-01), Ulion et al.
patent: 4321311 (1982-03-01), Strangman
patent: 4399199 (1983-08-01), McGill et al.
patent: 4401697 (1983-08-01), Strangman
patent: 4405659 (1983-09-01), Strangman
patent: 4405660 (1983-09-01), Ulion et al.
patent: 4414249 (1983-11-01), Ulion et al.
patent: 4477538 (1984-10-01), Clarke
patent: 4530885 (1985-07-01), Restall
patent: 4643951 (1987-02-01), Keem et al.
patent: 4676994 (1987-06-01), Demaray
patent: 4722869 (1988-02-01), Honda et al.
patent: 4880614 (1989-11-01), Strangman et al.
patent: 4916022 (1990-04-01), Solfest et al.
patent: 5015502 (1991-05-01), Strangman et al.
patent: 5180285 (1993-01-01), Lau
patent: 5236745 (1993-08-01), Gupta et al.
patent: 5238752 (1993-08-01), Duderstadt et al.
patent: 5427866 (1995-06-01), Nagaraj et al.
patent: 5500252 (1996-03-01), Meelu
R. Lowrie, "Composite Coatings of CoCrAlY Plus Platinum", Thin Solid Films, 45 (1977), no month, pp. 491-498.
Birks et al., "Introduction to High Temperature Oxidation of Metals", 1983, no month, p. 128.
A. McMinn et al., "Field Evaluation of Gas Turbine Protective Coatings", Journal of Engineering of Gas Turbines and Power, vol. 110, Jan. 1988, p. 142.
T. E. Strangman, "Thermal Barrier Coatings for Turbine Airfoils", Thin Solid Films, 127 (1985) no month, pp. 93-105.
J. T. Prater et al., "Ceramic Thermal Barrier Coatings with Improved Corrosion Resistance", Surface and Coatings Technology, vol. 32, 1987, no month, pp. 389-397.
Bell Stanley R.
Rickerby David S.
Wing Rodney G.
Chromalloy United Kingdom Limited
Gorgos Kathryn L.
Rolls-Royce plc
Wong Edna
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