Multilayer thermal barrier coatings
US8470460B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Dec 24, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multilayer thermal barrier coating (TBC) may include a plurality of layers selected to provide properties to the multilayer TBC. For example, a multilayer TBC may include a first layer deposited over a substrate, a second layer deposited over the first layer and a third layer deposited over the second layer. The first layer may be selected to provide thermal cycling resistance, the second layer may be selected to provide low thermal conductivity and the third layer may be selected to provide at least one of erosion resistance and CMAS degradation resistance. The multilayer TBC may also include two layers, or more than three layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.