Method of rapidly densifying a porous structure

Details Method of rapidly densifying a porous structure Method of rapidly densifying a porous structure

C - Chemistry, Metallurgy

04

B

C04B 35/83 (2006.01) C04B 35/52 (2006.01) C04B 41/81 (2006.01) C23C 16/04 (2006.01) C23C 16/26 (2006.01) C23C 16/46 (2006.01)

Patent

CA 2167699

Porous solid bodies, especially carbon bodies, are densified by chemical vapor deposition by establishing a thermal gradient within the body, thermally decomposing a gaseous precursor to deposit an electrically and thermally conductive deposit (e.g. carbon) witbin the body, and shifting the thermal gradient toward the lower temperature zone as deposition proceeds, by means of induction heating.

On densifie des corps solides poreux, notamment ceux constitués de carbone, par dépôt en phase gazeuse par procédé chimique, par l'établissement d'un gradient thermique dans un tel corps, la décomposition thermique d'un précurseur gazeux pour déposer dans ce corps un dépôt électroconducteur et thermoconducteur (du carbone par exemple), et décalage du gradient thermique vers la zone de température inférieure au fur et à mesure de ce dépôt au moyen d'un chauffage par induction.

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