... amounts of TiO2, SiO2, Fe2O3, CaO and MgO.♦ Brown Fused Alumina is characterized by good toughness, high mechanical resistance and hardness ... coated abrasive tools, and lapping and polishing processes.♦ Brown Fused Alumina is used as a raw material in the manufacture of ... high alumina refractory. 2. Applications:♦ Wet and dry blasting♦ Grinding, lapping and ...