V. P. Gorelov, V. B. Balakireva, A. V. Kuz'min, “Partial conductivities in perovskites CaZr$_{1-x}$Sc$_{x}$O$_{3-\alpha}$ ($x$ = 0.03–0.20) in an oxidation atmosphere”, Fizika Tverdogo Tela, 2016, Volume 58, Issue 1,Pages 14

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Semiconductors

Partial conductivities in perovskites CaZr$_{1-x}$Sc$_{x}$O$_{3-\alpha}$ ($x$ = 0.03–0.20) in an oxidation atmosphere

V. P. Gorelov^a, V. B. Balakireva^a, A. V. Kuz'min^ab

^a Institute of High-Temperature Electrochemistry, RAS, Yekaterinburg, Russia
^b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg

Abstract: Partial (ionic, proton, and hole) conductivities of oxides CaZr$_{1-x}$Sc$_{x}$O$_{3-\alpha}$ ($x$ = 0.03–0.20) with the perovskite structure in air atmosphere have been studied as functions of temperature in the range of 600–900$^\circ$C and partial water-vapor pressure in the range of $p_{\mathrm{H}_2\mathrm{O}}$ = 40–2500 Pa. The influence of the humidity of the atmosphere on the relative change in the concentration of oxygen vacancies as a function of temperature has been estimated.

Keywords: Perovskite, Oxygen Vacancy, Transport Number, Hole Conductivity, Partial Conductivity.

Received: 02.06.2015