Kravchyk K. The synthesis and properties nanocrystalline oxygen-conductive materials based on ZrO2 (Y2O3, Fe2O3, CeO2, CuO).

It has been ascertained in this work that method of sequential precipitation hydroxides (SPH) in comparison with coprecipitation hydroxides (CPH) and sol-gel methods allows to obtain soft, weak agglomerated nanoparticles of stabilized zirconium oxide. The effect of Fe2O3 and CuO on structured peculiarities of stabilized ZrO2 by Y2O3 and CeO2 was studied. The electrophysical properties of ZrO2-Y2O3-CeO2-CuO and ZrO2-Y2O3-Fe2O3 solid solutions have been studied. It has been showed that bulk samples of both systems are characterized by high magnitudes of ionic conductivity and low magnitudes of electronic conductivity (less than 0.2 and 2.5 % of total conductivity for systems ZrO2-Y2O3-CeO2-CuO and ZrO2-Y2O3-Fe2O3 in wide oxygen pressure region (10-17< aO2 < 1 at 920К for ZrO2-Y2O3-CeO2-CuO and 10-17< aO2 < 1 at 870К for ZrO2-Y2O3-Fe2O3)).