A CALCULATIONAL METHOD FOR DETERMINING PHASE BOUNDARY IN BINARY SYSTEM PHASE DIAGRAM

A study was sought for a calculational method of the phase boundary determination in a binary system phase diagram other than the previous conventional ones. When two phases are in equilibrium in the binary system under certain given temperature, two transcendental equations may be obtained. The proposed method will be developed by ploting one of these equations on diagram, working out several sets of solutions to fulfil this equation and then inserting into another equation for numerical approximation. Based on the present method the computer will show the phase boundary correctly and directly if its mathematical expression is given.