Quantum-statistical calculations of the thermodynamic properties of molybdenum at high energy densities

被引:3
|
作者
Kadatskiy, M. A. [1 ,2 ]
机构
[1] Russian Acad Sci, Joint Inst High Temp, Izhorskaya 13 Bldg 2, Moscow 125412, Russia
[2] Moscow Inst Phys & Technol, Inst Skiy Pereulok 9, Dolgoprudnyi 141700, Moscow Region, Russia
基金
俄罗斯基础研究基金会;
关键词
Self consistent field methods; Molybdenum; Equation of state; Shock wave experiments; EQUATION-OF-STATE; SHOCK COMPRESSION; MODEL; PRESSURES; TITANIUM; TANTALUM; OPACITY; ATOM; TPA;
D O I
10.1016/j.hedp.2019.100700
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
This paper is devoted to the theoretical investigation of the thermodynamic properties of molybdenum at condensed state (with densities rho >= rho(0) = 10.22 g/cm(3)) in the wide range of temperatures (T = 1-10(4) eV). Calculations of electron structure and electron contribution to equation of state were performed by three quantum-statistical models: the Thomas-Fermi, the Thomas-Fermi with quantum and exchange corrections and the Hartree-Fock-Slater ones. The contribution to thermal motion of ions and ion-ion interaction was taken into account in the framework of the Boltzmann ideal gas and the charged-hard-sphere models. Results of calculations were compared with available experimental data on shock compression and isentropic release of solid samples of molybdenum.
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页数:10
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