Electroconductivity investigations of the miscibility gap region in liquid In-Te alloys

Electroconductivity measurements for liquid In-Te alloys were performed throughout the entire miscibility gap region, employing the original experimental technique for high temperature and high pressure investigations. The experiments were performed at temperatures up to 1200 K in neutral medium under excess pressure of argon gas (up to 50 MPa.). The liquid-liquid coexistence curve on the phase diagram of the In-Te system and the critical point data are determined from the measurements. The shape of the coexistence curve and its diameter behaviour are analyzed and critical indices are evaluated. A correlation of the metal-nonmetal electron transition with phase separation in liquid immiscible In-Te alloys is discussed briefly.