Home – Home – Jornals – Thermophysics and Aeromechanics 2015 number 4

The results of dilatometric studies of thermal coefficient of linear expansion of dysprosium in the temperature range 110-1950 K are presented. The measurements were performed with an accuracy of (1.5-2.0)·10^-7 K^-1. The approximation dependences of thermal coefficient of linear expansion were obtained. The reference tables of dysprosium thermal properties for the range 110-1950 K of solid and liquid states were constructed using the previous results obtained by the gamma method. The character of thermal coefficient of linear expansion changes in the area of the Neel point has been established. Its critical exponents and the critical amplitudes have been determined. It is shown that both above and below the Neel temperature, the experimental data cannot be processed with a single scaling equation. A comparison with the published data has been performed.