Pressing and sintering behaviour of yttria stabilized zirconia powders prepared from acetate solutions

Abstract Yttria stabilized zirconia powders (3 mol% in Y 2 O 3 ) were prepared by the drying and air-calcination of amorphous gelatinous precipitates obtained by hydrolysis of solutions containing both zirconium and yttrium acetates. After sintering in air at 1500 or 1600°C, the characteristics of the materials were correlated with certain of the synthesis parameters (concentration of starting solution and neutralizing agent). Cold pressing compaction curves are analysed and the influence of residual oxycarbonates or carbonates on sintering is discussed.