A Model of Coprecipitation Doping for Preparing ZnO Varistor Ceramic Powders

Abstract:

This paper presents a study of the precipitation and coprecipitation of the B species ions which can be only complexed with hydroxyl by a numerical stimulation method based on the mechanism of balance on multi-ions reaction. The coprecipitation of A and B species ions is also investigated. The dependences of coprecipitation rate, side reaction rate and pH value on the ammonia contents are exhibited and discussed.