The density and the velocity of sound of liquid Li-Pb alloys have been measured in the composition ranges 0 -17, 30 -100 at % Pb and 0-10, 40 -100 at % Pb, respectively. The temperature dependence of these properties has been determined for each sample in a temperature range of at least 130 K. The excess volume is negative and has a minimum at about 20at%Pb, where the volume per atom at 800 °C is about 19% smaller than the volume of an ideal solution. The absolute value of the excess volume rises with the temperature, as does the absolute value of the deviation of the adiabatic compressibility from the mean compressibility.
For LiMg liquid alloys the density and the speed of ultrasonic waves were measured for temperatures between the liquidus and 970 ± 80 K, depending on the sample. The specific heat at constant pressure was determined for liquid and solid alloys at the compositions xMg < 0.50 and xMg < 0.60, respectively. The Scc (q) partial structure factor was measured by neutron diffraction in the liquid state at 695 and 875 K for the zero-alloy composition Li0.7Mg0.3. A small preference for unlike nearest neighbours is observed which diminishes with rising temperature. The volume per atom varies almost linearly with composition. However, the coefficient of thermal expansion, and the other properties which have been measured, show more or less pronounced deviation from linear behaviour. The excess specific heat is larger for the liquid than for the solid phase
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