Publications with shared reference: Influences of Al<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub>Content on Viscosity and Structure of CaO–8%MgO–Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub>–TiO<sub>2</sub>–5%FeO Blast Furnace Primary Slag