Composite thermal barrier coating with impermeable coating

Details Composite thermal barrier coating with impermeable coating Composite thermal barrier coating with impermeable coating

1996-04-11

1998-12-22

Speer, Timothy M.

Stock material or miscellaneous articles

Composite

Of metal

428471, 428472, 428689, 428698, 428701, 428702, B32B 1504

Patent

active

058516786

ABSTRACT:
A composite that protects thermal barrier coatings on parts from the deleterious effects of environmental contaminants at operating temperatures with an impermeable barrier coating is divulged. The thermal barrier coating composite decreases infiltration of molten contaminant compositions into openings in the thermal barrier coating to increase the life of the composite.

REFERENCES:
patent: 4399199 (1983-08-01), McGill
patent: 4676994 (1987-06-01), Demaray
patent: 4996117 (1991-02-01), Chu
patent: 5080977 (1992-01-01), Zaplatynsky
"Fatigue of Thick Thermal Barrier Coatings", KF Wesling, et al., J. Am. Ceram. Soc., 77(7) pp. 1863-1868 (1994).
"Degradation of Thermal-Barrier Coatings at Very High Temperatures", FH Stott, et al., MRS Bulletin, pp. 46-50, Oct. 1994.

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