Abstract

The paper presents results of internal mobility investigations of Na+ and Nd3+ cations in molten binary system NaClNdCl3 at 1023, 1073 and 1123 K. Results of investigations have been compared with literature data for KClNdCl3 system. It has been found that internal mobility of Na+ ions increases with temperature and is higher than mobility of its K+ analogues. It has also been found that for NaClNdCl3 system internal mobility of Nd3+ does not depend on the melt composition in the range of NdCl3 equivalent fractions 0.50 < yNd <-1, whereas for KClNdCl3 system this independence begins at NdCl3 equivalent fraction of 0.80. Moreover, internal mobility of Nd3+ seems almost independent of temperature.

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