Behaviour of Solid Oxide Fuel Cell Materials in Technological Environments

Viktoriya Podhurska, Bogdan Vasyliv, Andrij Ivasyshyn, Orest Ostash, Oleksandr Vasylyev, Tetyana Prikhna, Volodymyr Sverdun, Yehor Brodnikovskyi

Abstract


The YSZ–NiO ceramics for SOFC anodes and MAX-phases of Ti-Al-C systems for interconnects have been investigated. Based on the tests of YSZ–NiO specimens preconditioned by one-time reduction or by redox cycling at 600 or 800 °C, a certain mode of the material treatment was established which provides its improved physicomechanical properties. The oxidation behaviour of MAX-phases has been investigated at 600 °C in air. It was found that the intense initial oxidation of hot-pressed Ti3AlC2-based material can be eliminated by a certain mode of pre-oxidation. The oxidation resistance of the material can be significantly improved by niobium addition.

Keywords


solid oxide fuel cell (SOFC); YSZ–NiO anode ceramics; MAX-phase interconnect; reducing and oxidizing gas environments; physical and mechanical properties; structure

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References


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DOI: https://doi.org/10.17721/fujcV6I1P115-127

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