Effect of titanium oxide addition on magnesia refractories

Abstract

This work contains the results of investigations into the influence of titanium oxide (TiO 2) addition on the properties of refractory magnesia ceramics. The presented research involved adding titanium oxide in a classic way, i.e. directly to the ceramic mix. The conducted laboratory tests revealed a significant impact of this oxide on the properties of refractory materials. Addition of a small amount of TiO 2 favoured the ceramic mix sintering whereas adding a bigger amount-more than 10 wt% resulted in the formation of refractories characterised by considerable porosity and low mechanical strength. Addition of this oxide also slightly improves the corrosive resistance of refractories.