Abstract
Rod-shaped particle reinforced LiAlO₂ matrices for MCFC were fabricated by an aqueous tape-casting technique. The hydrolysis reaction and agglomeration of γ-LiAlO₂ particles in aqueous slurries were inhibited by additions of LiOH·H₂O and glycerin to the aqueous γ-LiAlO₂ slurry. The tape-casting, performed using the aqueous slurry containing protein albumin, was fast and led to an effective drying at casting temperature range of 60~65℃. The strength of the particle reinforced matrix was improved about 4 times compared to that of matrix without reinforcement. Pore size distribution (0.1~0.4 ㎛) and porosity (50~60%) of the reinforced matrices were determined to be appropriate for the MCFC matrix. The aqueous tape casting process is not only environmental-friendly but also efficient for fabricating MCFC matrices compared to non-aqueous tape casting.
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