High-temperature electrical conductivity of GdxTiyZrzCe1–x–y–zO2 solid solutions
- Authors: Zagaynov I.V.1, Fedorov S.V.1, Lyskov N.V.1,2, Kulbakin I.V.1, Antonova O.S.1
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Affiliations:
- Baikov Institute of Metallurgy and Materials Science
- Institute of Problems of Chemical Physics
- Issue: Vol 7, No 5 (2016)
- Pages: 756-759
- Section: General Purpose Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/205767
- DOI: https://doi.org/10.1134/S2075113316050282
- ID: 205767
Cite item
Abstract
The influence of the composition of the initial nanocrystalline powders of GdxTiyZrzCe1–x–y–zO2 (x + y + z ≤ 0.3) on electrical conductivity of ceramics, sintered at 1300°С in air, was investigated. The phase composition and microstructure of the samples were studied by XRD and SEM, respectively. The electrical conductivity of these materials was measured by four-probe DC technique and AC impedance spectroscopy in the temperature range of 400–1000°С in air. It was shown that the optimal composition of initial precursors was Gd0.1Zr0.05Ti0.05Ce0.8O2, which can be used as a solid electrolyte for intermediate-temperature solid oxide fuel cells.
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About the authors
I. V. Zagaynov
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: igorscience@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119334
S. V. Fedorov
Baikov Institute of Metallurgy and Materials Science
Email: igorscience@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119334
N. V. Lyskov
Baikov Institute of Metallurgy and Materials Science; Institute of Problems of Chemical Physics
Email: igorscience@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119334; ul. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
I. V. Kulbakin
Baikov Institute of Metallurgy and Materials Science
Email: igorscience@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119334
O. S. Antonova
Baikov Institute of Metallurgy and Materials Science
Email: igorscience@gmail.com
Russian Federation, Leninskii pr. 49, Moscow, 119334