Electrophoretic deposition of alumina and zirconia: II. Two-component systems

The similar electrophoretic mobility of Al2O3 and ZrO2 in the isopropanol suspensions containing monochloroacetic acid enabled a controlled preparation of layered and particle composites Al2O3/ZrO2 as well as functionally gradient materials with gradual composition transition from Al2O3 to ZrO2. In view of the negative charge of Al2O3 and ZrO2 particles in the isopropanol suspensions used, all the prepared types of composite were deposited on the anode and thus they were not affected by possible solvent electrolysis, which contributed to their defect-free and low-porosity structure. Phenomena related to the deposition kinetics of these composites as well as some properties of as-sintered composites are described in the paper.

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