Sm 0.5 Sr 0.5 CoO 3 Electrodes Fabricated at Intermediate Temperatures

Thick film SSC cathodes were fabricated by combustion CVD and evaluated via impedance spectroscopy. Films were deposited onto 250 micron YSZ at fabrication temperatures of 1000°C, 600°C and 450°C. Deposition temperature affected both the microstructure and phase of the resulting films but not their chemical composition. SSC electrodes fabricated at 450°C were aglomerations of largely amorphous particles while those fabricated at higher temperatures were interconnected polycrystalline films.