Melting in Argon at High Temperatures

Abstract

Accurate measurements of the molar volume of argon in the fluid and solid phases along the melting curve have been made with a weighing technique and data obtained for melting temperatures and pressures up to 200\ifmmode^\circ\else\textdegree\fi{}K and 6.3 kbar. A simple model for melting, which agrees reasonably well with these experimental data, indicates the correspondence between the details of the intermolecular pair potential and the quanlitative features evident in the transition.