510 固体酸化物型燃料電池電解質の超塑性特性

概要

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Solid Oxide Fuel Cells (SOFC) have exceptional potentials for electric power generation systems, because of their high energy conversion efficiency. Stabilized zirconia polycrystals are mainly used for the electrolyte of SOFC. Since superplasticity has been found in many kinds of zirconia-based polycrystals, its application to plastic forming of these polycrystals to make thin films or complex forms are very promising. Moreover, the application of superplasticity may connect with the improvement of electrolyte characteristics. In this study, superplastic properties, mechanical properties and electrical properties of typical zirconia polycrystals for the electrolytes, i. e., 3 to 10mol% Y_2O_3-doped zirconia polycrystals and 4 to 10mol% Sc_2O_3-doped zirconia polycrystals were examined, and the superplastic properties of the electrolytes were discussed.
一般社団法人日本機械学会の論文
2002-08-23