Coated article and method of making
US6485848B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B41/89
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An article includes a silicon-containing substrate and a modified mullite coating. The modified mullite coating comprises mullite and a modifier component that reduces cracks in the modified mullite coating. The article can further comprise a thermal barrier coating applied to the modified mullite coating. The modified mullite coating functions as a bond coating between the external environmental/thermal barrier coating and the silicon-containing substrate. In a method of forming an article, a silicon-containing substrate is formed and a modified mullite coating is applied. The modified mullite coating comprises mullite and a modifier component that reduces cracks in the modified mullite coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.