Intrinsic Creep Resistance of Two Solid Oxygen Fuel Cell Electrolytes Cubic Zirconia vs. Doped Lanthanum Gallate

Abstract

Knowledge of the creep parameters for cubic zirconia and doped lanthanum gallate allowed for a determination of the intrinsic resistance of each material in the temperature range , where they are to be utilized as electrolytes in solid oxygen fuel cells. The results reveal that the intrinsic creep resistance of cubic zirconia is much higher than that for doped lanthanum gallate. This is most likely a result of the difference in the complexity of the crystal structures. ©1999 The Electrochemical Society