Protective coating systems for gas turbine engine applications
US11370717B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2020 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A protective coating system includes a substrate that has an exterior surface exhibiting a degree of valley/hill surface irregularity including a plurality of hills and a plurality of valleys and a first coating layer formed directly on to the exterior surface of the substrate and that conforms to the exterior surface of the substrate such that the first coating layer has a non-uniform coating thickness over the substrate. The protective coating system further includes a second coating layer formed directly on to the exterior surface of the first coating layer. The second coating layer includes a plurality of pores within the second coating layer. Still further, the protective coating system includes a third coating layer formed within at least some of the plurality of pores within the second coating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.