INTERACTION OF RARE-EARTH FLUORIDES WITH ZIRCONIUM AND LEAD-SODIUM ALLOYS IN MOLTEN MIXTURES OF ALKALY METAL FLUORIDES

摘要

This communication presents the results of studying the interaction of rare-earth halides (rare-earth elements (REE) -La,Pr,Nd,Gd,Dy and Yb) with zirconium and lead-sodium alloys in molten alkali halide mixtures.The investigation,have been carried out using differential thermal (DTA),X-ray phase and chemical analysis with thermodynamic assessment of the interaction of REE halides with reducing metals.