Pressure dependence of melting temperatures for alkali halides

Melting curves representing the variations of melting temperature T-m with pressure P have been determined for sixteen alkali halides. The calculations have been performed using Lindemann-Gilvarry law for melting along with an expression for the volume dependence of the Gruneisen parameter. The formulation thus developed can be used to predict melting temperatures for materials at high pressures. It is found that the melting temperature increases with pressure in a non-linear manner such that the slope dT(m)/dP decreases continuously with the increase in pressure.