Process for the production of a carbon/carbon composite material part using mesophase powder
US5491000A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1993 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Feb 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for the production of a carbon/carbon composite material using mesophase powder. The process according to the invention comprises the stages of dispersing infusible mesophase microspheres in a solution containing a binder and a solvent able to wet the carbon fibres and thus form an impregnation bath (20), the binder and the solvent not being carbon precursors, impregnating each fibre (1) by the bath, placing (24) the impregnated fibres in a mould and unidirectionally pressing or compressing (26) the impregnated fibres in the mould whilst heating them to a first temperature T.sub.1 above ambient temperature suitable for evaporating the solvent and the binder and making the mesophase microspheres flow to a second temperature T.sub.2 above the first temperate and suitable for pyrolyzing the mesophase microspheres in coke form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.