Impurities in white fused alumina determine its lifespan, and its quality affects its effectiveness. White fused alumina contains impurities during production, primarily SiO2, Fe2O3, and TiO2; the fewer the impurities, the higher the quality. The amount of Al2O3 in white fused alumina also directly indicates its quality, and impurities determine its lifespan.
White fused alumina is primarily used as an abrasive. In recent years, it has been widely applied in refractory materials, such as iron hook castables, anhydrous slurry, corundum bricks, precast components, permeable bricks, steel ladle bricks, and magnesia-alumina-carbon bricks.
White fused alumina can also be used as a refractory material, but impurities can affect its refractory properties. Some impurities in refractory materials are easily fusible, while others have very high melting points but can form easily fusible compounds when coexisting with the main component. Therefore, the presence of impurities often has a strong fluxing effect on the main component.
White fused alumina is generally used as an aggregate and fine powder in refractory materials. Its advantages include high refractoriness, wear resistance, erosion resistance, high bulk density, and high alumina content. It is mainly used in high-alumina and alumina refractory materials. When used in refractory products, it also exhibits high load softening temperature and high-temperature volume stability.
