The degree of complexity of the subsolidus structure of three-component systems MgO-Al2O3-FeO, MgO-Al2O3-TiO2, MgO-TiO2-FeO, Al2O3-TiO2-FeO

The results of calculations of the subsolidus structure’s complexity of three-component systems are presented. It has been found that for carrying out a research of the subsolidus structure of MgO-Al2O3-FeO system it is necessary to analyze 1 model solid-phase exchange reaction, for MgOAl2O3-TiO2 – 25, for MgO-TiO2-FeO – 36 and for Al2O3-TiO2-FeO – 25. Кеуwords – the three-component system, subsolidus structure, connode, double compounds, phase composition.