Modeling of Molten Corium Oxidation in the Presence of an Oxide Crust on the Melt Surface

Technical Physics - In the case of a severe accident at a nuclear power plant with light-water reactors, the most effective method for localization of the formed melt (corium) is its retention in...     

Phase relationships in the SiO<Subscript>2</Subscript>-TiO<Subscript>2</Subscript> system

Phase equilibria in a miscibility gap of the SiO₂-TiO₂ system were studied. A visual polythermal analysis and annealing of samples were performed in a Galakhov microfurnace. The microstructure and composition of the obtained samples were investigated by scanning electron microscopy and electron probe microanalysis. A critical analysis of the experimental data was made. Thermodynamically optimized based on the sub-regular solution model, a phase diagram of the SiO₂-TiO₂ system was constructed.