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Thermophysics and Aeromechanics

2013 year, number 1

The density of leadpotassium alloy of eutectic composition

R.N. Abdullaev1, R.A. Khairulin2, and S.V. Stankus2
1Novosibirsk State University, Novosibirsk, Russia
2Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
stankus@itp.nsc.ru
Keywords: density, leadpotassium eutectic, crystallization, melting, gamma-ray attenuation
Pages: 89-94

Abstract

The temperature dependence of the density of eutectic alloy of lead–potassium system (90.7 at. % Pb) was investigated using gamma-ray attenuation technique over the temperature range 293950 K of solid and liquid states. The density changes during solidliquid phase transition were directly measured for the first time. The approximating dependences for the density have been obtained, and a comparison of the data of this work with previously published results has been carried out. The reference tables for the temperature dependences of thermal properties of the alloy have been compiled in the entire examined range, and their errors have been estimated.