Subsolidus phase equilibria in the Al2O3–CeO2–PbO and Al2O3–CeO2–RuO2 systems

The subsolidus phase equilibria in air for the Al2O3–CeO2–PbO and Al2O3–CeO2–RuO2 systems were studied with the aim of obtaining information on possible interactions between a CeO2-based solid electrolyte in solid-oxide fuel cells (SOFCs) and other oxides. No ternary compound was found in either of the systems. The tie line in the Al2O3–PbO–CeO2 system is between Al2Pb2O5 and the CeO2.