Fine grained Mg–PSZ ceramics with titania and alumina or spinel additions for near net shape steel processing

Mg–PSZ materials exhibit high corrosion resistance in steel/slag-systems. Through special additions of TiO2 and Al2O3 or MgAl2O4 special microstructures have been obtained by slip casting with improved thermal shock performance and corrosion resistance for applications in near net shape steel processing. The thermomechanical properties have been measured at room and at elevated temperatures up to 1450°C and the corrosion rates have been investigated in a specially designed device simulating real operating conditions of thin slab casting of steel. The thermal shock behaviour has been evaluated due to water quenching tests and measuring of the remaining four point bending strengths. In addition disc shapes have been shocked by the aid of an arc torch.