ABSTRACT
The chemical degradations on the surfaces of sintered alkaline earth doped lanthanum chromites were investigated under simulated SOFC operating condition for 200 h. Alkaline earth chromates such as Cam(CrO4)n or SrCrO4 migrated on the surfaces which were directly exposed to air or fuel gas. The migrated second phases decomposed on the surface which is exposed to fuel gas. The extent of the degradation depends on the amount and the location of alkaline earth chromates. This migration was not observed at the interface between lanthanum chromite and dense platinum electrode.
