Protective coatings for metal-based substrates, and related processes
US6274201A · kind A · utility
15Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12931
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An article is described, which includes a metal-based substrate, such as a superalloy; a dense, primary bond layer; and a spongy secondary bond layer. A thermal barrier coating is applied over the secondary bond layer. The spongy layer has a microstructure which includes an open network of interconnected pores. A process is also described. It includes the step of applying a spongy, metallic bond layer over the substrate, followed by the application of a thermal barrier coating. A dense, primary bond layer may optionally be applied before the application of the spongy layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.