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ZrO 2 –Sc 2 O 3 Solid Electrolytes Doped with Yb 2 O 3 or Y 2 O 3
Russian Journal of Electrochemistry ( IF 1.043 ) Pub Date : 2020-03-30 , DOI: 10.1134/s1023193520020081
E. E. Lomonova, D. A. Agarkov, M. A. Borik, G. M. Eliseeva, A. V. Kulebyakin, I. E. Kuritsyna, F. O. Milovich, V. A. Myzina, V. V. Osiko, A. S. Chislov, N. Yu. Tabachkova

Abstract The effects of the Y2O3 and Yb2O3 co-doping impurities on the transport characteristics and stabilization of the cubic phase in solid solutions based on ZrO2–Sc2O3 were compared. The crystals of the (ZrO2)0.99 –x(Sc2O3)x(Yb2O3)0.01 and (ZrO2)0.99 –x(Sc2O3)x(Y2O3)0.01 (x = 0.08–0.10) solid solutions were grown by directed crystallization of the melt in a cold container. The high-temperature cubic phase was stabilized at a total concentration of stabilizing oxides of 11 mol % for (ZrO2)0.99 –x(Sc2O3)x(Y2O3)0.01 crystals and at 10 mol % for (ZrO2)0.99 –x(Sc2O3)x(Yb2O3)0.01 crystals. At (9–10) mol % scandium oxide, the high-temperature conductivity of the crystals co-doped with ytterbium oxide was higher than in the case of the crystals co-doped with yttrium oxide. The (ZrO2)0.9(Sc2O3)0.09(Yb2O3)0.01 crystals have maximum conductivity over the whole temperature range.
更新日期:2020-04-22

 

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