Properties of YSZ electrolyte thin film made by tape casting from nanocrystalline powders

The process of YSZ electrolyte thin film made by tape casting from nanocrystalline powders were researed. Comparing to the properties of adobes manufacturing by tape casting process from different grains, as a result, the larger particles within the range of nanometer may easily from the highdensity adobes. But the fine particles have better sintering properties. The area resistance of YSZ electrolyte thin film at 1123K decrease greatly comparing to the sample D made in Germany. The complex resistance of YSZ electrolyte thin film made in the experiment at grain,grain boundary and electrode in the range of 573～1023K decrease greatly, by showed in the complex impedance plot.The YSZ electrolyte thin film with the size of 100mm×100mm×0.125mm were made by tape casting process, which was the basic for the planar SOFC developing quickly in China.