Construction of a wide-range tabular equation of state for copper

A global equation of state (EOS) for copper has been constructed, ranging from densities of 10-3--103 Mg/m3 and from ambient temperatures to 5 x 104 eV (1 eV = 11604.5 K). Six different theoretical models were used: a soft sphere liquid model at low temperatures below melt density; an ionization equilibrium model based on a modified Saha method at moderate temperatures in expansion; a nonideal plasma theory for high temperatures; a modified Thomas--Fermi--Kirzhnits model in compression; rigorous electron band theory for the zero degree isotherm; and a semiempirical model in the solid-liquid-vapor region. Assembly of the EOS will be described. Agreement with existing experimental data is good