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Thermophysics and Aeromechanics

2021 year, number 4

Caloric and transport properties of zirconium alloy e-110 in a wide temperature range

A.Sh. Agazhanov, D.A. Samoshkin, S.V. Stankus
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Keywords: the alloy of zirconium and niobium E-110, phase transformations, thermal conductivity, thermal diffusivity, heat capacity


A comprehensive experimental study of the thermophysical properties of the zirconium alloy E-110 (Zr-1 at. % Nb), which is used as a structural material for fuel rods of modern reactors, has been carried out. New experimental data on the thermal diffusivity a and the isobaric heat capacity cp in the temperature range of 293-1275 K have been obtained. Based on the measurement results, the thermal conductivity l for the a-phase of the alloy has been calculated. The estimated error of the obtained data is 2-4 %, 3-5 %, and 2-3 % for a , l , and cp , respectively. The comparison with the known literature data has been carried out. A table of recommended temperature dependences of all the studied properties has been developed.