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T. Kawada, N. Sakai, H. Yokokawa, M. Dokiya (1992)
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The system Y2O3-Sc2O3-ZrO2: Phase characterisation by XRD, TEM and optical microscopyJournal of The European Ceramic Society, 7
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Abstract Cubic stabilized ZrO2 with 8 mol% Y2O3 (YSZ) is commonly used as an electrolyte in solid oxide fuel cells (SOFC). One of the most promising cathode materials is La,Sr-manganite (LSM). During manufacture and operation of the SOFC, Mn diffuses from the LSM into YSZ. The structural changes caused by the presence of Mn in the electrolyte under various oxygen partial pressures have been examined by X-ray diffraction. Microstructures of YSZ containing Mn have been examined by transmission electron microscopy and surface changes of the electrolyte due to Mn diffusion were studied by scanning electron microscopy. The results are discussed with respect to properties and stability of the electrolyte and the SOFC.
Ionics – Springer Journals
Published: Sep 1, 1995
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