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

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... anical 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. ________________________________________________________________________________