C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/52 (2006.01) C04B 35/64 (2006.01) C04B 35/645 (2006.01) C04B 35/80 (2006.01) C04B 35/83 (2006.01) F16D 65/12 (2006.01)
Patent
CA 2089985
DESCRIPTIVE ABSTRACT Process for the production of a carbon/carbon composite material using mesophase powder. The process according to the invention comprises the stages of disper- sing infusible mesophase microspheres in a solution containing a binder and a solvent able to wet the carbon fibres and thus -form an impregna- tion 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 temper- ature T1 above ambient temperature suitable for evaporating the solvent and the binder and making the mesophase microspheres flow to a second temperature T2 above the first temperature and suitable for pyrolyzing the mesophase microspheres in coke form. (Fig. 1) SP 7636.69 LC
Chenier Jean P.
Hocquellet Dominique
Aerospatiale Societe Nationale Industrielle
Goudreau Gage Dubuc
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