Thermal Analysis of the System Na3AlF6-NaVO3

摘要

The phase diagram of the system Na3AlF6-NaVO3 was determined by means of thermal analysis.The system is a simple binary eutectic one.The eutectic point was estimated at x(NaVO3) = 0.975 and t_(eut) = 617°C.The XRD patterns of samples after thermal analysis revealed the presence of cryolite and NaVO3 only supporting the above assumption of a simple eutectic binary system.