Impact-abrasive wear resistance of high alumina ceramics and ZTA

In transport of raw materials abrasive wear resistance is a requirement, which can be met with alumina ceramics. At certain locations additional impact load occurs, exacerbating the loss. As literature on impact-abrasive ceramics scarce this topic will researched in work. We selected variety commercial (90–96% Al2O3) and according to much more resistant – substantially expensive Zirconia Toughened Alumina (ZTA, 20–25% Zr) used for linings dominated systems. Impeller-Tumbler test, an impact-abrasion test evaluation highly loaded ceramic edges. Two regimes were evaluated abrasive, either corundum particles severe or steel balls extreme conditions. Correlation results fracture toughness (K1C) Vickers hardness intended material parameters as measure brittle failure resistance, respectively. The various showed very different behaviour under load. 90% Al2O3 was least both Interestingly large differences between 92% types found at increase content 95–96% remarkable benefits regimes. Best against achieved by 25% ZTA, while it comparable high