STUDIES ON POWDER PROCESSING AND SINTERING BEHAVIOUR OF ZRO2-9.0 MOL% Y2O3CERAMICS

In the present investigation the synthesis and densification behaviour of ZrO2-9.0 mol% Y2O3 ceramics has been described. Powder preparation was based on the co-precipitation method. It was found that variation in the precipitation conditions and washing steps of the precipitated gels resulted in powder of different agglomerate sizes. The effect of different precipitations and washing conditions on the crystallite size of the 600°C calcined powders were examined by X-ray diffraction. The powders produced were essentially of the cubic fluorite phase. The ball-milled powders were analyzed for particle size distribution. Densification behaviour of the bodies made by slip casting has also been studied.