An lnvestigation for the Thermal Properties of Cu-Mo Composites as a Heat Sink Material

Abstract

The linear thermal expansion of Cu-Mo composites is measured in the temperature range of 30 to 850°C with the push-rod dilatometer method. The thermal diffusivity and the specific heat are measured by the laser flash method in the range from 20 to 600°C with stepping up every 50°C, and the thermal conductivity is calculated from the relation of λ=a⋅c_p⋅ρ, where ρ is the density of the composites. The composition of the Cu-Mo composites is varied from 10 to 90 mass% in Cu and the residue is Mo. The temperature dependence on these thermal properties and the anisotropy of the the linear thermal expansion are investigated.