A perturbed Yukawa chain equation of state for refractory liquid metals

被引:0
作者
Mousazadeh, Mohammad H. [1 ]
Hakimelahi, Rakhshan [2 ]
机构
[1] Res Inst NSTRI, Dept Chem Nucl Sci & Technol, Tehran 113653486, Iran
[2] Islamic Azad Univ, Dept Chem, Jahrom Branch, Jahrom, Iran
关键词
equation of state; liquid alloys and liquid metals; Yukawa potential; PURE;
D O I
10.1080/00319104.2012.695071
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The perturbed Yukawa chain equation of state (EoS) has been employed to calculate the liquid density of refractory metals over a wide range of temperatures and pressures. The model uses three independent parameters: m-segment number, sigma-segment size, and epsilon/k-segment energy. For pure components, parameters have been obtained by fitting the models to experimental data on liquid densities. Our calculations on the liquid density of tantalum, rhenium, molybdenum, titanium, zirconium, hafnium and niobium from undercooled temperatures up to several hundred degrees above the boiling point and pressures ranging from 0 to 200MPa reproduces very accurately the experimental pVT data.
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页码:124 / 130
页数:7
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