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Based on the thermodynamically self-consistent analysis and optimization of three sub-binary systems ofthe ternary system PrCl_3-CaCl_2-MgCl_2,the thermodynamics of this ternary system has been studied.UsingHillert model and taking MgCl_2 as an asymmetric component,the PrCl_3-CaCl_2-MgCl_2 phase diagram hasbeen calculated.The agreement between calculated and measured compositions and temperatures at deflectingpoints on liquidus is good.The system is a simple eutectic one with a eutectic point at 26.0mol% PrCl_3,41.5mol% CaCl_2,32.5mol% MgCl_2;560℃(calculated)and 26.0mol% PrCl_3,39.4mol% CaCl_2,34.6mol%MgCl_2;546℃(measured),respectively.
Based on the thermodynamically self-consistent analysis and optimization of three sub-binary systems of the ternary system PrCl_3-CaCl_2-MgCl_2, the thermodynamics of this ternary system has been studied. Using Hillert model and taking MgCl_2 as an asymmetric component, the PrCl_3-CaCl_2- MgCl_2 phase diagram hasbeen calculated. The agreement between calculated and measured compositions and temperatures at deflecting points on liquidus is good. The system is a simple eutectic one with a eutectic point at 26.0mol% PrCl_3, 41.5mol% CaCl_2, 32.5mol% MgCl_2; 560 (Calculated) and 26.0 mol% PrCl_3, 39.4 mol% CaCl_2, 34.6 mol% MgCl_2; 546 ° C (measured) respectively.