Apparatus for the investigation of thermal diffusivity and true specific heat of metals

The operating principle and construction of an apparatus for measuring the temperature dependence of thermal diffusivity and true specific heat of solid materials, in the temperature range of from $-150$ to $400^{\circ}$ C, are discussed. The results of tests of the apparatus using specimen materials, and new data on the thermal diffusivity and specific heat of some copper-based alloys, are presented.