We study the properties of ZrO2 –Y2O3 –NiO ceramics obtained by using the technologies of sintering of powders and tape casting in the intact state and after one-time reduction both in pure hydrogen and in Ar–5% H2 and N2 –10% H2 –5% CO2 mixtures. It is demonstrated that, by using the technology of tape casting, it is possible to obtain materials for anodes-substrates of solid-oxide fuel cells with smaller grains and a more uniform structure, which improves their strength characteristics. It is shown that, in the hydrogen-containing medium containing carbon dioxide (N2 –10% H2 –5% CO2 ), the strength of 8YSZ–Ni cermet decreases as its electric conductivity increases as compared with the material reduced in the Ar–5% H2 mixture.
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 56, No. 1, pp. 21–26, January–February, 2020.
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Vasyliv, B.D., Podhurska, V.Y., Ostash, O.P. et al. Influence of the Working Media of Fuel Cells on the Structure and Physicomechanical Characteristics of Ceramics of the ZrO2–Y2O3–NiO System. Mater Sci 56, 15–21 (2020). https://doi.org/10.1007/s11003-020-00391-4
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DOI: https://doi.org/10.1007/s11003-020-00391-4