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Thermophysics and Aeromechanics

2013 year, number 2

The density and thermal expansion of the liquid alloys of Na-Pb with low lead content

R.A. Khairulin1, S.V. Stankus2, and R.N. Abdullaev2
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
Keywords: sodium-lead alloys, melt, density, thermal expansion


The density and thermal expansion coefficients of liquid sodium and sodium-lead alloys (2.50, 5.00, 7.50, 9.99, and 21.03 at. % Pb) were investigated using gamma-ray attenuation technique in the temperature range from the liquidus line up to 950 K. Accuracy of density measurement is estimated to be ± 0.2–0.4 %. Temperature and concentration dependences of thermal properties of liquid system Na–Pb have been built.