Analysis of the structural and chemical state of the duplex – system of silicates – silicides of alkaline earth metals. Message 2. Duplex - system SiO2-MgO-CaO : Si-Mg–Ca

A polygonal diagram of the state CaO-SiO2-MgO ternary system was constructed in entire range concentrations solid and liquid initial components, which increases informativeness diagrams metallurgical systems. The obtained results SCS analysis silicate silicide phases duplex SiO2–MgO–CaO : Si–Mg–Ca are scientific basis for optimization blast furnace iron refining processes with smelting slags magnesium alloys. Keywords: diagram, slag, calcium, physicochemical, technological quantum-mechanical parameters.