First,white fused aluminum oxide is made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase α-Al2O3；Platelet white calcined alumina(PWA/WCA) is a white calcined aluminum oxide abrasive powder consisting of plate-shape aluminum oxide(Al2O3) with high purity more than 99% and concentrated PSD(Particel Size Distribution)
The main difference of white fused aluminum oxide and platelet white calcined aluminum oxide is as follows:
White fused aluminum oxide is fused,but platelet white calcined aluminum oxide if calcined.
White fused aluminum oxide is irregular,but platelet white calcined aluminum oxide is plate-shape as follows: