Abstract:
The present invention relates to titanium oxide-containing aluminium oxide particles based on corundum melted in an electric arc furnace from calcined alumina. The particles have an aluminium oxide content of > 97.0 % by weight, a titanium oxide content of between 1.3 and 1.8 % by weight and a zirconium oxide content of between 0.02 and 0.1 % by weight. The aluminium oxide particles have an arithmetic mean compactness of