COMPOSITE COPPER POWDER

摘要

PROBLEM TO BE SOLVED: To provide a material having high thermal conductivity and a high electrical insulating property.

SOLUTION: There are provided composite copper powders comprising composite copper particles containing silicon carbide fine particles in core particles made of copper. A thermal conductivity at a temperature of 25°C under 1 atmospheric pressure is ≥10W/mk and volume resistivity at a temperature of 25°C and 100f/kg is ≥1x105Ωcm. It is preferable that a part of the surface of the silicon carbide fine particles is exposed and embedded by the surface of the core particles in the composite copper powders.

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