摘要 |
A composite material having a high thermal conductivity and a small thermal expansion coefficient, which is obtained by impregnating a porous graphitized extrudate with a metal; the composite material having such anisotropy that the thermal conductivity and the thermal expansion coefficient are 250 W/mK or more and less than 4x10<SUP>-6</SUP>/K, respectively, in an extrusion direction; and that the thermal conductivity and the thermal expansion coefficient are 150 W/mK or more and 10x10<SUP>-6</SUP>/K or less, respectively, in a direction perpendicular to the extrusion direction.
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