Abstract
Zirconia powders containing 12 mol% ceria have been prepared by the coprecipitation technique. The aim of the present work was to obtain nanosized powders with suitable sinterability and reduced grain size in the sintered ceramic by means of this solution technique in its simplest route, that is, without using any milling or other special procedure. To accomplish those requests some processing variables have been systematic studied. For comparison purposes, specimens of the same composition have been prepared by the powder mixing technique. The optimization of some processing variables allowed for obtaining sintered specimens with apparent densities of 98% of the theoretical value, 100% of tetragonal phase, and 500 nm of average grain size.
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