Effects of Cu Doping on the Microstructure and Electrical Properties of Sr3 YCo4 O10.5

摘要：

　　Polycrystalline samples of Sr3YCo4-x CuxO10.5(x =0, 0.2, 0.4, 0.6) have been prepared by a solid state reaction method.The microstructure and electrical properties of Sr3YCo4-xCux O10.5 have been investigated by XRD, SEM and four-probe.The results indicate that in the range of x =0 ~ 0.4 Sr3YCo4-xCuxO10.5 is single-phase, its resistivity dependence of temperature curve shows nonmetallic behavior and the resistivity at room temperature de creases successivdy with the increasing of Cu con tent Porous structures observed from SEM demon strate that with the increasing of Cu content the grain sizes enlarge, the number of pores decreases gradually.

关键词： ceramic Cu-doping densification nonmetallic behavior porous structure

作者: Xiaoli Du Lan Yu Bin Zhang Shijin Song Guofang Li Yongxiong Qin

作者单位: Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 274-277

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）