Composite protective coating for carbon-carbon substrates
US4500602A · kind A · utility
58Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1981 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Aug 10, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Composite protective coatings for protecting carbonaceous substrates from degrading in oxygen containing environments are provided. The composite protective coatings include a first coating layer applied to the surface of the substrate. The first coating layer is a silicon carbide type coating. The second coating layer is applied to the surface of a first coating layer and is a sputter deposited phase stabilized zirconium oxide having a columnar microstructure. Carbonaceous substrates having the composite protective coatings are able to withstand temperatures of about 4100.degree. F. in oxygen containing environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.