Ceramic Materials Based on BaCe0.9M0.1O3–δ for Intermediate Temperature Solid Oxide Fuel Cell
Elena M. Filonenko, Yuliya A. Lupitskaya, Dmitrii A. Kalganov
Abstract. In the present work, we synthesized compounds based on barium cerate by partial heterovalent substitution of cerium ions Ce4+ by ions of yttrium and metals of rare earths (M3+ – Pr, Nd, Sm, Gd) on heating in the air. Optimal temperatures for the synthesis of powders were established using data of the thermogravity analysis. The phase features of synthesized compounds have been studied by X-ray diffraction data using the Rietveld method. It is established that at a final synthesis temperature of 1373 K solid solutions of BaCe0.9M0.1O3-δ are formed, which crystallize within the framework of a distorted perovskite-type structure. For the obtained perovskite phases, the parameters characterizing the structural features were determined, and a correlation between the defectiveness of the crystal lattice of the phase composition and their electrically conductive properties was established. The ceramic properties (relative density, porosity, grain size) of the samples sintered at 1773 K were studied.
Keywords
Barium Cerate, Heterovalent Substitution, Solid Solutions, Perovskite-Like Phases, Ceramics
Published online 11/15/2018, 5 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Elena M. Filonenko, Yuliya A. Lupitskaya, Dmitrii A. Kalganov, ‘Ceramic Materials Based on BaCe0.9M0.1O3–δ for Intermediate Temperature Solid Oxide Fuel Cell’, Materials Research Proceedings, Vol. 9, pp 157-161, 2018
DOI: http://dx.doi.org/10.21741/9781644900017-30
The article was published as article 30 of the book Shape Memory Alloys
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