Pitch-based carbon foam heat sink with phase change material

Details Pitch-based carbon foam heat sink with phase change material Pitch-based carbon foam heat sink with phase change material

B - Operations, Transporting

29

C

B29C 67/20 (2006.01) C01B 31/02 (2006.01) C08J 9/04 (2006.01) C08L 95/00 (2006.01) C09K 5/02 (2006.01) F28D 20/02 (2006.01)

Patent

CA 2334583

A process for producing a carbon foam heat sink 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 graphic 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. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.

Cette invention se rapporte à un procédé servant à produire un puits thermique en mousse de carbone qui élimine la nécessité de recourir à une stabilisation oxidative classique. Ce procédé utilise de la poix isotropique ou en mésophase et une opération simplifiée en un seul moule. La mousse présente une répartition relativement uniforme de la granulométrie et une structure graphique à fort alignement dans les parties faisant office d'étais. Le matériau mousse peut être produit en un composite utile dans des panneaux de type sandwich haute température pour des applications à la fois thermiques et structurelles. La mousse est enrobée et elle est chargée d'un matériau à changement de phase permettant de produire un dispositif de puits thermique très efficace.

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