Thermal Analysis and Phase Equilibria of the Molten System Na3AlF6-NdF3-Nd2O3

Abstract Phase diagrams of the systems Na 3 AlF 6 -NdF and (Na ) eut -Nd 2 O were experimentally determined by thermal analysis up to 60 mol.% NdF 45 Nd , respectively. The system was found be a simple eutectic with point following approximate coordinates: 49 905°C. This composition then used for system. coordinates approximately 46 733°C. After analysis, x-ray diffraction solidified samples both performed. XRD has shown formation two new compounds; NaNdF 4 NdOF. NdOF is probably product high-temperature hydrolysis between moisture in atmosphere . compounds: NdOF, NdAlO 3, NaF.