Calculation of Cp(T) for liquid Li/Pb alloys from experimental ρ(T) and (δp/δT)sdata
- 1 February 1987
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 17 (2) , 305-314
- https://doi.org/10.1088/0305-4608/17/2/003
Abstract
The density rho and the adiabatic variation of temperature T with pressure p, ( delta T/ delta p)s, have been measured for the whole concentration range of liquid Li/Pb alloys and for a temperature range of 200 to 700 K (depending on composition) above the liquidus temperature TL. The heat capacity Cp calculated from these data exhibits a pronounced peak at the composition Li4Pb where at TL it exceeds the ideal Cpi by an excess value Cpxs of about 0.8 Cpi. Linear variation of Cp with T was only observed for pure liquid Pb. Strongly bent curves with more or less pronounced minima were observed for the other compositions, including pure liquid Li. The Cpxs of liquid Li4Pb compares well with a value calculated from neutron diffraction data by Ruppersberg and Schirmacher (1984).Keywords
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