Multilayered erosion resistant coating for gas turbines
US7744986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Nov 21, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coating system is used on an engine component having an outer surface configured to be exposed to a first plurality of particles impinging against the outer surface at an angle within a first angle range and a second plurality of particles impinging at an angle in a second angle range. The system includes a bond layer overlying the engine component outer surface, a first erosion-resistant layer comprising a first material that is more resistant to erosion by particles impinging the component outer surface at an angle within the first angle range than by particles impinging within the second angle range, an interlayer overlying the first erosion-resistant layer, and a second erosion-resistant layer comprising a second material that is more resistant to erosion by particles impinging the component outer surface at an angle within the second angle range than by particles impinging within the first angle range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.