DRAWING PREDOMINANCE DIAGRAM OF M_1—M_2—x—y SYSTEM AND ITS APPLICATION

Discussions were made of the principle,method and computer program for drawing the pre-dominance diagrams of the bi-metal co-existed system M_1-M_2-x-y in which the multi-me-tallic compounds may be produced by interaction between compounds of both metals.Theformation of zinc ferrite and its stable region have been analyzed through drawingZn-Fe-S-O system predominance diagrams.The availability of the diagram is given the di-rection to roast the zinc sulfide ore as well.