Zirconia aluminum oxide was made from alumina powder and Zirconium oxide powder, by melted above 2000 in the electric arc furnace and cooling.
Then the Zirconia aluminum oxide lumps be crushed into different size,from 5 mm to 0.8 um.
Zirconia aluminum oxide is strong but pliable in texture,compact structure,Good Thermal Stability.
Generally,Zirconia aluminum oxide sand/powder is in gray color