Protection against the oxidation of composite materials containing carbon
US9416059B2 · kind B2 · utility
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Key dates
| Filing date | Nov 28, 2006 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Jan 19, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2250/0038
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A part made of a porous material containing carbon, in particular a C/C composite material, is protected against oxidation by being impregnated with a composition in an aqueous medium containing at least a phosphorous compound, elemental titanium, and boron or a boron compound other than titanium diboride, to form in the presence of oxygen and at least one alkali or alkaline-earth element M that catalyzes oxidation of carbon, at least one P—O—Ti-M type association bonded by boron oxide B2O3 and trapping the element M.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.