Sc_2O_3をドープしたジルコニア系固体酸化物型燃料電池電解質の圧縮変形による超塑性と電気的特性(オーガナイズドセッション,超塑性と材料および造形法)

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, by compressive defomations having been frequently used for practical forming processes, superplastic, mechanical and electrical properties of 4 to 10mol% Sc_2O_3-doped zirconia polycrystals, known for having a high rate of electric conduction, were examined. In prticular, the superplastic properties of the electrolytes were discussed.
一般社団法人日本機械学会の論文
2004-09-23