Pitch-based carbon foam and composites

Details Pitch-based carbon foam and composites Pitch-based carbon foam and composites

C - Chemistry, Metallurgy

04

B

18/1

C04B 38/00 (2006.01) B64G 1/58 (2006.01) C09K 5/14 (2006.01)

Patent

CA 2302172

A process for producing carbon foam or a composite is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphitic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications.

L'invention concerne un procédé de production d'une mousse de carbone ou d'un composite, qui ne nécessite pas d'étape de stabilisation oxydative classique. Le procédé emploie un brai de mésophase ou isotrope et un processus simplifié utilisant un seul moule. La mousse présente une répartition de dimensions de pores relativement uniforme, et une structure graphitique fortement alignée dans les éléments de support. La matière de mousse peut être employée pour former un composite utile pour des panneaux sandwich haute température en vue d'applications thermiques et de structure.

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