Grey zirconia fused alumina za25/ZA40

Zirconia fused alumina was made from aluminum and Zirconium oxide by melting above 2000 in the electric arc furnace and cooling.Then the huge Zirconia fused alumina lump be crushed into different size,from a few mm to 0.8 um

ZA25:Al2O3: 68%-72% ZrO2: 24%-30%

ZA40:ZrO2: 35%-44% Al2O3: 55%-57%

Mohs hardness:9.0