Process of making carbon-carbon composites

Details Process of making carbon-carbon composites Process of making carbon-carbon composites

1998-01-15

2000-04-18

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Filaments

264 296, 264 81, 264 82, 4234477, 4272492, 4272493, 4272494, 42724915, 42724916, C01B 3102, D01F 912

Patent

active

060511672

ABSTRACT:
A carbon composite structure, for example, an automotive engine piston, is made by preparing a matrix including of a mixture of non crystalline carbon particulate soluble in an organic solvent and a binder that has a liquid phase. The non crystalline particulate also contains residual carbon hydrogen bonding. An uncured structure is formed by combining the matrix mixture, for example, carbon fibers such as graphite dispersed in the mixture and/or graphite cloth imbedded in the mixture. The uncured structure is cured by pyrolyzing it in an inert atmosphere such as argon. Advantageously, the graphite reinforcement material is whiskered prior to combining it with the matrix mixture by a novel method involving passing a gaseous metal suboxide over the graphite surface.

REFERENCES:
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patent: 4902453 (1990-02-01), Okura et al.
patent: 5206085 (1993-04-01), Nakagawa et al.
Kowbel W. et al. "Applications of Net-Shape Molded Carbon-Carbon Composites in IC Engines". Journal of Advanced Materials, vol. 27, No. 4 (1996), pp. 2-7.
Kowbel W. et al. "Properties of C/C Composites Produced in One Low Cost Manufacturing Step". Carbon, vol. 34 (1996), pp. 819-821.
Kowbel W. et al. "Low Cost C/C Composites for Cylinder Liners". Carbon, vol. 35 (1997), pp. 1201-1203.

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