Thermal barrier coating
US6352788B1 · kind B1 · utility
31Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2000 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Feb 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12875
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermal barrier coating (TBC) system for components designed for use in a hostile thermal environment, such as the turbine, combustor and augmentor sections of a gas turbine engine. The TBC system employs a thermal-insulating ceramic topcoat that is compatible with known metallic bond coats, such as diffusion aluminides and MCrAlY and NiAl coatings. The ceramic topcoat is formed of zirconia partially stabilized by about one up to less than six weight percent yttria and further stabilized by about one to about ten weight percent of magnesia and/or hafnia, to exhibit improved impact resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.