Abstract
The co-precipitation method has been employed to prepare CeO2-ZrO2 ceramics. The application of a wet chemical method is expected to yield highly sinterable material at lower sintering temperatures. The characteristics of the synthesized powders are evaluated with respect to the particle size distribution, calcination step, and the degree of agglomeration. The sintering behaviour of the prepared powder is studied at various temperatures to obtain different phase distributions and grain sizes. The amount of the monoclinic phase in the as-sintered specimen is decreased with increasing CeO2 contents in CeO2-ZrO2. 13.7 mol% CeO2 is sufficient to achieve a tetragonal phase in the CeO2-ZrO2 system. In addition, Y2O3 and MgO dopants in CeO2-ZrO3 reduce the grain size and result in a fully tetragonal phase for the 10 mol% CeO2 matrix.
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