The effect of transition metal oxides on the sintering and properties of ceramics in the ZrO2-Al2O3 system

Abstract

The paper presents the results of the investigation of the transition metals oxides - cobalt and iron additives influence on the sintering and properties of the ceramic material based on ZrO2- Al2O3 system with 10 wt.% Al2O3. It is shown that the addition of the oxides resulted in the significant increase of the sintered ceramic materials ZrO2-10%Al2O3 strength and decrease of sintering temperature. The maximum bending strength was more than 800 MPa (sintered at 1450 °C) and porosity was less than 1%.