Semiempirical calculations of the zerodegreeKelvin isotherm in metals
Abstract
A phenomenological model has been devised for calculating the cold compression curves of metals up to the 10TPa pressure region. The nuclear Grüneisen coefficient can also be correctly computed using this model. Shock Hugoniot curves were calculated for several metals using these cold compression curves to which the ion and electron thermal contributions were added. The results gave excellent agreement with experimental results for Pb, W, and Cd when the electron thermal portion is computed according to the ThomasFermiKhirzhnits model. For Al, Cu, Fe, and Mo other electron thermal models must be used to give agreement with experimental results.
 Publication:

Physical Review A
 Pub Date:
 January 1986
 DOI:
 10.1103/PhysRevA.33.706
 Bibcode:
 1986PhRvA..33..706S
 Keywords:

 Compressible Flow;
 Electron Energy;
 Isotherms;
 Low Temperature;
 Metals;
 Phenomenology;
 Semiempirical Equations;
 Aluminum;
 Cadmium;
 Copper;
 Hugoniot Equation Of State;
 Iron;
 Lead (Metal);
 Molybdenum;
 Tungsten;
 Thermodynamics and Statistical Physics;
 64.30.+t;
 Equations of state of specific substances