What Factors Can Influence the Color of Brown Fused Alumina?

According to brown fused alumina manufacturers, authentic brown fused alumina is brown. Where did brown fused alumina of all colors come from?

In fact, the main factor contributing to the color is TiO₂ content. Usually there is 1.5% to 3.8% TiO₂ in brown fused alumina. If the content is lower than 1% to 1.3%, brown fused alumina will turn gray, which belongs to the second level. There is another brown fused alumina that appears dark, which is categorized to the third level. However, part of brown fused alumina in the market is rosy due to poor smelting effects. If you check out brownish red browned fused alumina, then it is likely that the distributors have blended garnet into brown fused alumina. Seen under a magnifying glass, you will find the dazzling light coming out of those brownish red.

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