Titanium aluminide articles having improved high temperature resistance
US5879760A · kind A · utility
3Cited by
17References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1992 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Nov 5, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C28/023
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for protecting a titanium aluminide substrate against environmental degradation at higher temperatures, which comprises applying a layer of a ductile titanium alloy to at least one exterior surface of the substrate and applying an oxidation resistant coating to the exterior surface of the ductile layer. The titanium aluminide substrate may be monolithic or a fiber-reinforced composite structure. The oxidation resistant coating is an ion-plated coating of (a) a noble metal, such as gold or platinum, or (b) a coating of tungsten followed by an ion-plated coating of a noble metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.