Активность и парциальные термодинамические характеристики празеодима в эвтектическом расплаве галлий-алюминий

Abstract

Activity of α-Pr in Ga-Al eutectic alloy was measured for the first time between 572-1076 K employing the electromotive force method. Temperature dependence of activity in terms of semi-logarithmic coordinates (lga = f (1/T)) is described by simple linear equation. Main partial thermodynamic characteristics ( of praseodymium in eutectic Ga-Al alloy were calculated using obtained dependence. Comparison of partial Gibbs energy values of praseodymium in Ga, Al and Ga-Al melt shows that lanthanide predominantly interacts with gallium in the studied eutectic metal mixture.