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Influence of the Working Media of Fuel Cells on the Structure and Physicomechanical Characteristics of Ceramics of the ZrO2–Y2O3–NiO System
Materials Science ( IF 0.9 ) Pub Date : 2020-07-01 , DOI: 10.1007/s11003-020-00391-4
B. D. Vasyliv , V. Ya. Podhurska , O. P. Ostash , I. O. Polishko , E. M. Brodnikovs’kyi , S. E. Ivanchenko , O. D. Vasyl’ev

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.

中文翻译:

燃料电池工作介质对ZrO2-Y2O3-NiO体系陶瓷结构和物理力学特性的影响

我们研究了使用粉末烧结和流延成型技术在纯氢和 Ar–5% H2 和 N2–10% H2 中以完整状态和一次还原后获得的 ZrO2 –Y2O3 –NiO 陶瓷的性能–5% 二氧化碳混合物。结果表明,采用流延成型技术可以获得晶粒更小、结构更均匀的固体氧化物燃料电池阳极-基板材料,提高了其强度特性。结果表明,在含二氧化碳的含氢介质(N2 –10% H2 –5% CO2 )中,8YSZ-Ni金属陶瓷的强度随着其电导率的增加而降低,与在Ar-5中降低的材料相比% H2 混合物。
更新日期:2020-07-01
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