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.

中文翻译：

---

掺Yb 2 O 3或Y 2 O 3的ZrO 2 -Sc 2 O 3固体电解质

摘要

比较了Y ₂ O ₃和Yb ₂ O ₃共掺杂对基于ZrO ₂ -Sc ₂ O _3的固溶体中立方相的输运特性和稳定性的影响。（ZrO ₂）_{0.99 – x}（Sc ₂ O ₃）_x（Yb ₂ O ₃）_0.01和（ZrO ₂）_{0.99 – x}（Sc ₂ O ₃）_x（Y ₂ O ₃）的晶体）通过在冷容器中对熔体进行定向结晶来生长_0.01（x = 0.08–0.10）固溶体。对于（ZrO ₂）_{0.99 – x}（Sc ₂ O ₃）_x（Y ₂ O ₃）_0.01晶体，稳定的高温立方相的总稳定氧化物浓度为11 mol％，对于（ZrO ）稳定为10 mol％₂）_{0.99 – x}（Sc ₂ O ₃）_x（Yb ₂ O ₃）_0.01晶体。在（9–10）mol％的氧化dium下，掺有氧化y的晶体的高温电导率高于掺有氧化钇的晶体。（ZrO ₂）_0.9（Sc ₂ O ₃）_0.09（Yb ₂ O ₃）_0.01晶体在整个温度范围内具有最大电导率。