Abstract
Cu–graphite composites were prepared by HIP-ing at 50 vol.% of graphite. Coated composite was made from copper coated graphite powder. Uncoated one was made from the same graphite powder mixed with copper powder. Specific heat, thermal diffusivity and conductivity of both composites were measured and compared. While specific heat of composites is similar, thermal diffusivity and conductivity of coated composite is significantly lower. It was assumed that this is the result of the different microstructure and thermal resistance of copper-graphite interface.

Key words
metal matrix composites, hot isostatic pressing, coating, thermal conductivity

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