On the calculation of multicomponent stable phase diagrams

In a thermodynamic system, a stable phase diagram is uniquely determined by the thermodynamic parameters of each phase. A generalized phase equilibria calculation software package should enable the calculation of the phase di agram from the parameters automatically, without requiring either prior kno wledge of the diagram or special user skills. Improvements to the existing software packages have been achieved in the new software package PANDAT. Th e approach used in this software is described briefly and some examples of its advantages are given.