Compression dependence of αKT for ionic solids Original Research Article

In the present study, the compression dependence of αKT is analyzed using Anderson–Isaak equation along with Staceyʹs equation of state for ionic solids such as NaCl and MgO. It is found that the value of αKT decreases with increasing compression and attains a minimum, after which it increases with increasing compression along an isotherm. It is also found that αKT tends to infinity as P→∞ or V→0. The presented nature of αKT is valuable to understand the thermoelastic and thermodynamic properties of MgO and NaCl at high compressions and at high temperatures.