V. N. Korobenko and A. I. Savvatimskii
Institute of High Energy Densities, Institute of High Temperatures Scientific Association (IVTAN),
Russian Academy of Sciences, Izhorskaya ul. 13/19, Moscow, 125412 Russia
E-mail: savlab@iht.mpei.ac.ru
Abstract—Experimental data on the properties of liquid zirconium are essential for simulating heavy nuclear
accidents at nuclear power plants. Experimental data were obtained for solid and liquid zirconium properties
(density, enthalpy, specific heat capacity, emissivity, and resistivity) as functions of temperature. The density
and resistivity were measured for zirconium wire samples. The other properties, including temperature, were
measured for zirconium foil rather than wire samples because tested blackbody models heated to high temper-
atures were made of foil. Temperature measurements up to 4100 K were performed with a fast pyrometer and
a composite two-strip wedge-shaped blackbody model. The onset of melting was used for calibrating temper-
ature measurements. The temperatures were calculated by the Planck equation. As a result, a temperature
dependence of the specific imparted energy (enthalpy) was obtained up to 4100 K. The smoothed experimental
data are given in tables (in steps of 50 K) for convenience of thermochemical calculations.
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