Effect of Al₂O₃ and TiO₂ on Viscosity, Surface Tension, and Density of Blast Furnace Slag with CaO/SiO₂ = 1.13

The influence of Al2O3 in the range 10–20 mass% and TiO2 0.55–5 on flow behavior, viscosity, density, surface tension molten industrial blast furnace slag with CaO/SiO2 = 1.13 is investigated using a high-temperature microscope, rotating viscometer, maximum bubble pressure method. measurement results show that acts as network former studied CaO–SiO2–MgO–Al2O3–TiO2 slags. With an increase content from 10 to 20 mass%, viscosity slags density decreases. In contrast Al2O3, surfactant breaker up 15 mass%. addition decrease liquid-dominated region Therefore, increases due increasing molar volume. behavior breakpoint temperature all curves complete agreement point crystallization temperatures melilite perovskite.