Behaviour of Solid Oxide Fuel Cell Materials in Technological Environments

Author:

Podhurska Viktoriya1,Vasyliv Bogdan1,Ivasyshyn Andrij1,Ostash Orest1,Vasylyev Oleksandr2,Prikhna Tetyana3,Sverdun Volodymyr3,Brodnikovskyi Yehor2

Affiliation:

1. H.Karpenko Physico-Mechanical Institute

2. I.Frantsevich Institute for Problems in Materials Science

3. V.Bakul Institute for Superhard Materials

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.

Publisher

Taras Shevchenko National University of Kyiv

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