COMPOSITE MATERIAL WITH HIGH THERMAL CONDUCTIVITY

摘要

PROBLEM TO BE SOLVED: To enhance the thermal conductivity of an aluminum composite material containing a fibrous carbon material.

SOLUTION: In a process of producing a discharge plasma sintered compact in which a metal matrix powder of aluminum or the like is blended with the fibrous carbon material, the aluminum powder which is the matrix base metal is blended with an Al alloy powder such as an Al-12 Si powder having a melting point lower than a sintering temperature of the base metal. The Al alloy powder melts in a process of sintering the aluminum powder to improve the thermal conductivity among the aluminum powder particles, and between the aluminum powder particles and the fibrous carbon material.

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