A Comparison of Fine-Grained Alumina-Ziroconia Prepared by Slip Casting and Electrophoretic Deposition

Abstract

Al₂O₃-dispersed ZrO₂-3mol%Y₂O₃ composites have been prepared by slip casting and electrophoretic deposition to compare the sinterability and microstructure, using three commercially-available Al₂O₃ powders. Composites were prepared by pressureless sintering at 1300°C. The consolidated (green) density, sintered density, grain size and dispersion are compared for both colloidal techniques with the aim of improving the homogeneity and reducing the necessary temperature for sintering.