EFFECT OF INORGANIC ELECTROLYTES ON THE RHEOLOGICAL PROPERTIES OF THE AQUEOUS YTTRIUM-OXIDE COLLOIDAL ZIRCONIA BINDER SOLS SYSTEM

Abstract

Multivalent ions such as La3+, Mg2+ function as surface-active counter ions for Y2O3 particles in aqueous solution. Due to the addition of these electrolytes, the solid content of Y2O3/ZrO2 binder sols slurry was increased and the stability of the slurry was improved. Both ion valence and ion size of electrolytes added into the slurry are expected to influence the slurry rheological flow behaviour.