Equation of state for tungsten over a wide range of densities and internal energies

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Khishchenko, K.V.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13, Moscow

125412, Russia^1

关键词: Cold compression;    Condensed phase;    Equation of state;    High energy densities;    Internal energies;    New forms;    Pressure density;    Thermodynamic characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012081/pdf
DOI  :  10.1088/1742-6596/653/1/012081

来源: IOP

【 摘 要 】

A caloric model, which describes the pressure-density-internal-energy relationship in a broad region of condensed-phase states, is applied for tungsten. As distinct from previously known caloric equations of state for this material, a new form of the cold-compression curve at T = 0 K is used. Thermodynamic characteristics along the cold curve and shock Hugoniots are calculated for the metal and compared with some theoretical results and experimental data available at high energy densities.