Process for the production of a carbon/carbon composite material

Details Process for the production of a carbon/carbon composite material Process for the production of a carbon/carbon composite material

1993-02-24

1996-02-13

Nelson, Peter A.

Coating processes

Electrical product produced

Carbon base

428408, 501 88, B05D 512, B32B 900

Patent

active

054910005

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.

REFERENCES:
patent: 3917884 (1975-11-01), Jahn
patent: 4321154 (1982-03-01), Ledru
patent: 4409048 (1983-10-01), Hatch et al.
patent: 4868037 (1989-09-01), McCullough, Jr. et al.

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