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Zirconia stabilized by Y and Mn: A microstructural characterization

Zirconia stabilized by Y and Mn: A microstructural characterization 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Zirconia stabilized by Y and Mn: A microstructural characterization

Ionics , Volume 1 (5): 8 – Sep 1, 1995

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References (25)

Publisher
Springer Journals
Copyright
1995 IfI - Institute for Ionics
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/BF02375284
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

IonicsSpringer Journals

Published: Sep 1, 1995

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