Authors: Xifeng Ding Lucun Guo
Publish Date: 2006/09/01
Volume: 41, Issue: 18, Pages: 6185-6188
Abstract
Lanthanum chromite based perovskite have been widely accepted as ceramic interconnects and as protecting layers for metallic interconnects in solid oxide fuel cells SOFCs because of thier high electronic conductivity chemical stability in both oxidizing and reducing atmospheres as well as their chemical and thermomechanical compatibility with other cell components under operating conditions 1 2 Strontiumdoped LaCrO3 has emerged as a primary candidate for SOFC interconnects over other alkaline earth oxides such as CaO and MgO 3 From the viewpoint of compatibility of thermal expansion among SOFC components Srdoped lanthanum chromite can match the coefficient of thermal expansion CTE to the Y2O3stabilized ZrO2 YSZ electrolyte using less than 20 mol Sr 4
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