标题：Research on preparation of Ca3-xLa xCo4O9thermoelectric material by microwave heating
作者：Mu, Jiechen ;Zhang, Lipeng
作者机构：[Mu, Jiechen ] School of Mechanical Engineering, Shandong University of Technology, SDUT, Zibo, China;[Zhang, Lipeng ] School of Chemical Engineering, 更多
来源：2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings
摘要：Ca3-xLaxCo4O9powders were prepared by sol-gel process and microwave heating. The Ca-Co-O thermoelectric material ceramics were prepared. The Ca3-xLaxCo4O9powders and ceramic materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The microstructure and thermoelectric properties of ceramics were researched. The results indicated that the crystal of Ca3-xLaxCo4O9grew ideally, crystallite were fine. The Ca3-xLaxCo4O9ceramics contained directional array plate-shaped grains with layered structure. The thermoelectric properties of Ca3-xLaxCo4O9ceramics were excellent. There were high electrical conductivity of Ca3-xLaxCo4O9ceramics. Microwave sintering method had the advantages of high efficiency. © 2011 IEEE.