Microstructure evaluation of Al2O3 ceramics with Mg-PSZ- and TiO2-additions

Thermal shock improved microstructures of porous alumina fine grained materials have been obtained with Mg-PSZ- and TiO2-additions. The new material displays a non-linear deformation behaviour as a function of the applied stress and presents a very low Young's modulus of elasticity. The extrusion technique has been selected in order to produce porous honeycomb structures. By the aid of a special gas burner equipment the cyclical thermal shock performance of the material has been evaluated.