Condensed Matter | |
An Equation of State for Metals at High Temperature and Pressure in Compressed and Expanded Volume Regions | |
Bishnupriya Nayak1  S.V. G. Menon2  | |
[1] High Pressure and Synchroton Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India;Shiv Enclave, 304, 31-B-Wing, Tilak Nagar, Mumbai 400089, India; | |
关键词: metals; equation of state; high pressure physics; shock waves; liquid–vapor phase; critical point parameters; soft-sphere model; | |
DOI : 10.3390/condmat4030071 | |
来源: DOAJ |
【 摘 要 】
A simple equation of state model for metals at high temperature and pressure is described. The model consists of zero-temperature isotherm, thermal ionic components, and thermal electronic components, and is applicable in compressed as well as expanded volume regions. The three components of the model, together with appropriate correction terms, are described in detail using Cu as a prototype example. Shock wave Hugoniot, critical point parameters, liquid−vapor phase diagram, isobaric expansion, etc., are evaluated and compared with experimental data for Cu. The semianalytical model is expected to be useful to prepare extended tables for use in hydrodynamics calculations in high-energy-density physics.
【 授权许可】
Unknown