Process for producing carbon preform

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

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4234474, 264 292, C01B 3100

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054339375

ABSTRACT:
A simple manufacturing process for obtaining a carbon/carbon composite of superior performance is provided without using a carbon fiber fabric which is expensive and without going through the step of fixing fibers together using a binder.
A precursor fiber for a carbon fiber which precursor fiber has been rendered infusible is subjected to uniaxial pressing at a temperature lower than the temperature adopted in the infusiblizing treatment, and then a carbonization treatment is performed.
According to the present invention, a primary-pressed carbon material can be produced without using a binder, thus resulting in that not only the carbon material but also a carbon/carbon composite can be produced in a simple manner.

REFERENCES:
patent: 5057254 (1991-10-01), Sohda et al.
patent: 5071700 (1991-12-01), Sugino et al.
patent: 5254396 (1993-10-01), Takemura et al.

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