Preparation of YSZ solid electrolyte by slip casting and its properties  

作　　者：DOU Jinga LI Heping XU Liping ZHANG Lei WANG Guangwei 

机构地区：[1]Laboratory for Study of the Earth＇s Interior and Geofluids, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China [2]Graduate School of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Rare Metals》2009年第4期372-377,共6页稀有金属（英文版）

基　　金：supported by the National High-Tech Research and Development Program of China (No. 2006AA09Z205);the National Natural Science Foundation of China (No. 40573046);the Science and Technology Foundation of Guizhou Province of China (No. (2006)2105)

摘　　要：Fully stabilized YSZ solid electrolyte was prepared by slip casting. The density was measured according to the Archimedes principle and the linear shrinkage was calculated from measuring the sizes of samples before and after sintering. XRD analysis was conducted to verify the phase structure of both the starting YSZ powder and the prepared YSZ electrolyte. The microstructure of fracture surface and the electrical properties of the samples sintered at different temperatures were investigated via SEM and a complex impedance method, respectively. By comparison of the properties and features among the samples, a slip casting method was established to be a simple way to manufacture high-quality YSZ electrolyte at the sintering temperature of 1550℃ for 3 h, which provides a new approach for YSZ electrolyte with complex shapes and mass production.Fully stabilized YSZ solid electrolyte was prepared by slip casting. The density was measured according to the Archimedes principle and the linear shrinkage was calculated from measuring the sizes of samples before and after sintering. XRD analysis was conducted to verify the phase structure of both the starting YSZ powder and the prepared YSZ electrolyte. The microstructure of fracture surface and the electrical properties of the samples sintered at different temperatures were investigated via SEM and a complex impedance method, respectively. By comparison of the properties and features among the samples, a slip casting method was established to be a simple way to manufacture high-quality YSZ electrolyte at the sintering temperature of 1550℃ for 3 h, which provides a new approach for YSZ electrolyte with complex shapes and mass production.

关 键 词：YSZ solid electrolyte slip casting ionic conductivity 

分 类 号：TQ174.622[化学工程—陶瓷工业] TM911.4[化学工程—硅酸盐工业]