Molten salt phase diagram evaluation by pattern recognition; Part I Divalent rare earth halide and alkali metal halide binary systems

摘要

At present CALPHAD (CALculation of PHAse Diagram) technique is not capable of predicting whether there exists intermediate compound, much less predicting the formulae, the number, and the melting congruence of intermedi- ate compounds. To solve this problem, a new approach called the phase diagram evaluation by pattern recognition (PDEPR) was improved. The micro-parameters. Such as the radius and the electronegativity of the different features in multi-dimensional space.