Thermophysical properties of solid phase rhodium measured by the pulse calorimetry technique over a wide temperature range

Abstract

This paper presents experimental results on four thermophysical properties of pure polycrystalline rhodium samples over a wide temperature range. Specific heat capacity and specific electrical resistivity were measured from 300 to 2 200 K, while hemispherical total and normal spectral emissivities were measured from 1 200 to 2 200 K. All the properties were obtained by means of the electrical pulse calorimetry technique using specimens in the form of a thin rod, of about 2 mm in diameter and 200 mm in length. For necessary corrections, literature data on thermal linear expansion have been used. All the results are compared with available literature data and discussed.