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Subsolidus phase relations in the La2O3–Fe2O3–Al2O3 system

Published online by Cambridge University Press:  26 November 2012

Danjela Kuščer ,
Slavko Bernik ,
Marko Hrovat  and
Janez Holc
Danjela Kuščer
Affiliation:
Jozěf Stefan Institute, Ceramics Department, Jamova 39, 1000 Ljubljana, Slovenia
Slavko Bernik
Affiliation:
Jozěf Stefan Institute, Ceramics Department, Jamova 39, 1000 Ljubljana, Slovenia
Marko Hrovat
Affiliation:
Jozěf Stefan Institute, Ceramics Department, Jamova 39, 1000 Ljubljana, Slovenia
Janez Holc
Affiliation:
Jozěf Stefan Institute, Ceramics Department, Jamova 39, 1000 Ljubljana, Slovenia
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Abstract

The subsolidus phase relations in the La–Fe–Al–O system were investigated for solid oxide fuel cell (SOFC) applications. Five compounds, LaAlO3, LaAl11O18, LaFe12O19, AlFeO3, and LaFeO3, coexist in the La–Fe–Al–O system at 1380 °C in air. The microstructure and composition of the samples were studied by x-ray diffractometry and scanning electron microscopy. Based on experimental evidence, a phase diagram of the La2O3–Al2O3–Fe2O3 system has been proposed.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 3 , March 2001 , pp. 822 - 827
Copyright
Copyright © Materials Research Society 2001

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