Protection of thermal barrier coating by a sacrificial surface coating
US5660885A · kind A · utility
65Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Apr 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for protecting thermal barrier coatings deposited on engine parts from the deleterious effects of environmental contaminants at high temperatures is given. The method uses a sacrificially consumed oxide coating with the thermal barrier coating, where the consumption of the oxide coating increases the melting temperature of a contaminant composition above the surface temperature of the thermal barrier coating, or increases the viscosity of the contaminant composition to prevent its infiltration into the thermal barrier coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.