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Subsolidus phase equilibria in the RuO2–Bi2O3–CeO2 system

Published online by Cambridge University Press:  31 January 2011

Marko Hrovat ,
Andreja Benčan ,
Janez Holc ,
Tadej Rojac  and
Marija Kosec
Marko Hrovat
Affiliation:
Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
Andreja Benčan
Affiliation:
Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
Janez Holc
Affiliation:
Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
Tadej Rojac
Affiliation:
Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
Marija Kosec
Affiliation:
Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
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Abstract

Subsolidus equilibria in air in the RuO2–Bi2O3–CeO2 systems were studied with the aim of obtaining information on possible interactions between a Bi2Ru2O7-based cathode and a CeO2-based solid electrolyte in solid-oxide fuel cells. Bi2O3 is soluble in CeO2, and forms a cubic fluorite solid solution Bi1-xCexO2-x/2 up to Bi1/3Ce2/3O1.83, while no solid solubility of the CeO2 in Bi2O3 was detected. No ternary compound was found in the system. The tie line is between Bi2Ru2O7 and the CeO2 solid solution.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 18 , Issue 6 , June 2003 , pp. 1297 - 1300
Copyright
Copyright © Materials Research Society 2003

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References

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