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Pitch-based carbon foam heat sink with phase change material

United States Patent

August 24, 2004
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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.
Klett; James W. (Knoxville, TN), Burchell; Timothy D. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
09/ 489,640
January 24, 2000
STATEMENT REGALING FEDERALLY SPONSORED RESEARCH The United States Government has rights in this invention pursuant to contract No. DE-AC05-960R22464 between thie United States Department of Energy and Lockheed Martin Energy Research Corporation.