Abstract
An investigation was made of the electrical properties of phases with the cubic fluorite, pyrochlor, and C-Y2O3 structures, and the tetragonal ZrO2 structure (T-ZrO2) in the ternary system ZrO2 - Y2O3 - La2O3. For comparison, the electrical conductivity of a number of specimens with the fluorite structure in the binary system ZrO2 - Y2O3 and with the pyrochlor structure in the ternary system HfO2 - Y2O3 - La2O3 was also studied. The specimens were prepared from nanocrystalline powders synthesized by the hydrolysis of zirconium salts in an acid medium at high temperatures. Conductivity was measured over the range 300–950°C in air. It was shown that phases with the fluorite and T-ZrO2 structures in the investigated systems possess the highest electrical conductivities.
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Translated from Poroshkovaya Metallurgiya, Nos. 3/4(412), pp. 40–46, March–April, 2000.
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Zyrin, A.V., Shevchenko, A.V. & Lopato, L.M. Electrical properties of phases in the ZrO2 - Y2O3 - La2O3 system. Powder Metall Met Ceram 39, 146–150 (2000). https://doi.org/10.1007/BF02678636
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DOI: https://doi.org/10.1007/BF02678636