Uniformity of Al ₂ O ₃ ‐ZrO ₂ Composites by Colloidal Filtration

Abstract

Dispersion states of aqueous composite Al 2 O 3 /ZrO 2 colloidal suspensions were studied by measuring particle size distribution as a function of pH. Mutual dispersion was achieved at pH values of 2.0 to 3.5. Consolidated composites formed by colloidal filtration reflected the uniformity of the colloidal state. The mean flexural strength (896 MPa) of the sintered compacts was 1.6 times that of bodies consolidated by isostatic pressing .