Thermodynamic Characteristics of Praseodymium Alloys with Eutectic Melts Gallium – Indium

Abstract

There were measured equilibrium potential of alloys Pr–In, contained 8,7–12,1 mol.% Pr, and alloys Pr–In–Ga of eutectic composition, saturated by praseodymium up to 6,71 mol.% Pr, at 573–1073 K in the salt solution on the base (Li–K–Cs)Cleut. Metal praseodymium was used as a reference electrode when investigation Pr–In system; two-phase praseodymium – indium L ++ PrIn3 with well-known thermodynamic characteristics and without phase transition in examined temperature region under investigation of Pr–In–Ga system. There was calculated partial thermodynamic characteristics and praseodymium activity in the alloys with indium and eutectic mix Ga–I