ZrO_2基固体氧离子导体的Y_2O_3、Gd_2O_3复合掺杂  

The Y_2O_3、Gd_2O_3 Composite Doping of Zro_2 Solid Oxygen Ion Conductors

作　　者：叶树人[1] 劳令耳[1] 黄英才[1] 曾庆丰[1] 陈平[1] 

机构地区：[1]贵州大学理学院基础教学部,贵州贵阳550003

出　　处：《贵州工业大学学报（自然科学版）》2005年第5期1-4,共4页Journal of Guizhou University of Technology(Natural Science Edition)

基　　金：贵州省科学技术项目:黔基合计字(2003)3003号

摘　　要：在纳米Y2O3稳定ZrO2粉中,加入不同摩尔分数(0.0-10%)的纳米Gd2O3粉进行复合掺杂。当Y2O3和Gd2O3与ZrO2的摩尔比之和小于8%时,烧结样品为四方相或四方/立方混合相;超过8%,完全为立方相。复合掺杂Y2O3和Gd2O3的ZrO2固体氧离子导体的电导率优于单独由Y2O3稳定的ZrO2固体氧离子导体。当Y2O3和Gd2O3与ZrO2的摩尔比之和为8%-9%时,样品电导率有最大值。在1000℃时,掺3.0%Y2O3和5.0%Gd2O3的1300℃烧样品的电导率为5.1×10-2Scm-1.With adding of 0.0- 10mol% nano-Gd2O3, the nano- powder of Y2O3 stabilizing ZrO2 was used as raw materials for composite doping. When the addition of Y2O3 and Gd2O3 was less than 8. 0mol%, the phase of the samples was tetragonal or the blending of tetragonal and cubic; while over 8. 0mol% ,was cubic completely. The conductivity of the sample doped Y2O3 and Gd2O3 at the same time was better then that which only doped Y2O3. When the addition of Y2O3 and Gd203 was 8--9mo1%, the conductivity of the samples was the maximum. At 1000℃, the conductivity of the one doped 3.0mol% Y2O3 and 5.0mol% Gd2O3 was 5.1×10^-2 Scm^-1.

关 键 词：固体电解质 ZRO2 Y2O3 GD2O3 复合掺杂 

分 类 号：O483[理学—固体物理]