The aim of this research is to study zirconia-based electrolyte materials to increase the commercial value of zircon concentrate as a side product of fin mining industries. Synthesis of CaO-Y2O3-ZrO2 （CYZ） and 8mol%...The aim of this research is to study zirconia-based electrolyte materials to increase the commercial value of zircon concentrate as a side product of fin mining industries. Synthesis of CaO-Y2O3-ZrO2 （CYZ） and 8mol% Y2O3-ZrO2 （8YSZ） was carried out by solid state reaction. The result shows that ZrO2 presents in tetragonal phase. Doping of Y203 into ZrO2 allows a phase transformation from tetragonal into cubic structure with small percentage of monoclinic phase. Meanwhile, doping of CaO-Y2O3 allows a phase transformation into a single cubic phase. These phase transformations enhance the ionic conductivity of the material. Introduction of 10wt% of LSGM-8282 into CYZ （CYZ-L90：10） allows further improvement of inter-grain contact shown by SEM morphological analysis and leads to the enhancement of ionic conductivity.展开更多
基金supported by the Directorate General ofHigher Education, Republic of Indonesia through HibahDesertasi Doktor and Riset KK ITB
文摘The aim of this research is to study zirconia-based electrolyte materials to increase the commercial value of zircon concentrate as a side product of fin mining industries. Synthesis of CaO-Y2O3-ZrO2 （CYZ） and 8mol% Y2O3-ZrO2 （8YSZ） was carried out by solid state reaction. The result shows that ZrO2 presents in tetragonal phase. Doping of Y203 into ZrO2 allows a phase transformation from tetragonal into cubic structure with small percentage of monoclinic phase. Meanwhile, doping of CaO-Y2O3 allows a phase transformation into a single cubic phase. These phase transformations enhance the ionic conductivity of the material. Introduction of 10wt% of LSGM-8282 into CYZ （CYZ-L90：10） allows further improvement of inter-grain contact shown by SEM morphological analysis and leads to the enhancement of ionic conductivity.
