Systems and methods for carbon-carbon materials incorporating yttrium and zirconium compounds
US9970497B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 18, 2015 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Apr 19, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2101/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of treating a carbon structure is provided. The method may include the step of infiltrating the carbon structure with a ceramic preparation comprising yttrium oxides and zirconium oxides. The carbon structure may be densified by chemical vapor infiltration (CVI) and heat treated to form yttrium oxycarbides and/or carbides and zirconium oxycarbides and/or carbides. Heat treating the carbon structure may comprise a temperature ranging from 1000° C. to 1600° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.