Abstract:
Measurement data are given for the thermal diffusivity of $\rm{Zr}$–$2.5\%\,\rm{Nb}$ and $\rm{Zr}$–$50\%\,\rm{Nb}$ alloys both with the usual polycrystalline structure and with submicro- and nanocrystalline structures at high temperatures, which were determined in the automated mode using the dynamic technique of plane temperature waves.