Abstract:A novel method that employs electrochemical impedance spectroscopy (EIS) is developed to characterize the oxide scale resistance and thickness of Crofer 22 APU after exposure at 800°C in humidified air. Crofer 22 APU, is one of the most commonly used materials for solid oxide fuel cell interconnects, an application for which oxide scale resistance is of paramount importance. The kinetics of oxide growth were studied for up to 6,000 hours using three different techniques: electron microscopy of cross-sections, … Show more
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