Method of forming a diffusion aluminide-hafnide coating
US6332931A · kind A · utility
13Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1999 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Dec 29, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C10/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for forming a diffusion aluminide-hafnide coating on an article, such as a component for a gas turbine engine. The process is a vapor phase process that generally entails placing the article in a coating chamber containing a halide activator and at least one donor material. The donor material collectively consists essentially of at least 0.5 weight percent hafnium and at least 20 weight percent aluminum with the balance being chromium and/or cobalt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.