Email this article The Electric Conductivity of Poly- and Singlecrystaline Y2O3 in Oxidative Atmosphere
- Authors: Kovrova A.I.1, Gorelov V.P.1, Kuz’min A.V.1,2, Melekh B.A.3
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Affiliations:
- Institute of High-Temperature Electrochemistry, Ural Division
- Ural Federal University named after the first President of Russia B.N. Yeltsin
- Ioffe Physicotechnical Institute
- Issue: Vol 54, No 9 (2018)
- Pages: 733-740
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189496
- DOI: https://doi.org/10.1134/S1023193518090057
- ID: 189496
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Abstract
Comparative impedance measurements of electric conductivity of nominally undoped yttria are carried out for samples with sharply differing morphologies, namely, single crystals and porous ceramics (with a density of 67%) over a 980–350°С temperature range in air atmosphere of different humidity (рН2О= 40–3000 Pa). Dilatometric analysis of possible structure changes is carried out. The effects of uncontrolled impurities on the yttria defect structure are analyzed.
About the authors
A. I. Kovrova
Institute of High-Temperature Electrochemistry, Ural Division
Author for correspondence.
Email: kovrova@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
V. P. Gorelov
Institute of High-Temperature Electrochemistry, Ural Division
Email: kovrova@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
A. V. Kuz’min
Institute of High-Temperature Electrochemistry, Ural Division; Ural Federal University named after the first President of Russia B.N. Yeltsin
Email: kovrova@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002
B. A.-T. Melekh
Ioffe Physicotechnical Institute
Email: kovrova@ihte.uran.ru
Russian Federation, St. Petersburg, 194021
