2019 Volume 60 Issue 9 Pages 1949-1953
Lanthanum silicate oxyapatite (LSO) has superior properties as a solid electrolyte for solid oxide fuel cell (SOFC) applications. This is because LSO has a higher oxide-ion conductivity compared to yttria-stabilized zirconia at temperatures below 600°C. Textured LSO bulk ceramics were fabricated based on a magnetic field-assisted colloidal processing technique. The c-axis of the LSO was aligned parallel to the applied magnetic field during the consolidation by slip casting. The anisotropic electric conductivity of the textured bulk ceramics was evaluated by the impedance spectroscopy method. It was confirmed that very high conductivity was obtained along the c-axis. Higher fuel cell performance was demonstrated in the textured LSO compared to the random LSO.
This Paper was Originally Published in Japanese in J. Jpn. Soc. Powder Powder Metallurgy 65 (2018) 121–126.
