Shock compressibility of iron calculated in the framework of quantum-statistical models with different ionic parts

Quantum-statistical calculations of shock compressibility of iron are performed. Electronic part of thermodynamic functions is calculated in the framework of three quantum-statistical approaches: the Thomas-Fermi, the Thomas-Fermi with quantum and exchange corrections and the Hartree-Fock-Slater mod...

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Bibliographic Details
Published in:Journal of physics. Conference series 2016-11, Vol.774 (1), p.12005
Main Authors: Kadatskiy, M A, Khishchenko, K V
Format: Article
Language:English
Subjects:
Compressibility
Ideal gas
Iron
Physics
Statistical methods
Statistical models
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Summary:Quantum-statistical calculations of shock compressibility of iron are performed. Electronic part of thermodynamic functions is calculated in the framework of three quantum-statistical approaches: the Thomas-Fermi, the Thomas-Fermi with quantum and exchange corrections and the Hartree-Fock-Slater models. The influence of ionic part of thermodynamic functions is taken into account separately with using three models: the ideal gas, the one-component plasma and the charged hard spheres models. The results of calculations are presented in the pressure range from 1 to 107 GPa for samples with initially densities 7.85, 4.31 and 2.27 g cm3. Calculated Hugoniots are compared with available experimental data.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/774/1/012005