Self-healing oxidation-resistant carbon structure
US4599256A · kind A · utility
37Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1984 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | Apr 9, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An oxidation resistant carbon-carbon composite (31) including a plurality of graphite fibers (13) within a carbonized (graphitized) matrix (14). A first material including boron (16) and a second material including silicon (18) are applied thereto. Heating the composite in the course of service use to a temperature at which the composite cracks enables the boron and silicon to combine to provide a borosilicate sealant of sufficiently low viscosity for sealing cracks in the composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.