Article having thermal barrier coating
US9051652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2009 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2495
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An article includes a metallic substrate and a tri-layer thermal barrier coating that is deposited on the metallic substrate. The tri-layer thermal barrier coating includes an inner ceramic layer, an outermost ceramic layer relative to the metallic substrate, and an intermediate ceramic layer between the inner ceramic layer and the outermost ceramic layer. The inner ceramic layer and the outermost ceramic layer are composed of respective first and second ceramic materials and the intermediate ceramic layers composed of a third, different ceramic material. The inner ceramic layer has a first thickness, the outermost ceramic layer has a second thickness, and the intermediate ceramic layer has a third thickness that is greater than the first thickness and the second thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.