掺纳米Sm_2O_3的ZrO_2(3Y)固体电解质的密度、晶相和电性能  

The Density,Phase and Electrical Properties of ZrO_2(3Y) Doped Nano-Sm_2O_3

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

机构地区：[1]贵州大学基础部,贵州贵阳550003

出　　处：《贵州工业大学学报（自然科学版）》2005年第3期8-11,共4页Journal of Guizhou University of Technology(Natural Science Edition)

基　　金：贵州省科学技术项目资助;黔基合计字(2003)3003号

摘　　要：在纳米ZrO2(3Y)粉中,加入不同摩尔分数(0.0-10%)的纳米Sm2O3粉进行复合掺杂。1300℃烧结样品的致密度在88%以上,Sm2O3掺入量2.0%时有最大致密度,为98.1%.Sm2O3的掺入使样品晶相从四方相向立方相转变,掺入量为5.0%以上时成为立方相。掺1.0%Sm2O3样品电导率稍有下降,掺入量为2.0%时电导率增大,5.0%时达到最大, 1000℃电导率为5.2×10 S2cm-1,高于相同条件下8%摩尔氧化钇全稳定立方相氧化锆ZrO2(8Y).With adding of 0.0-10 mol% nano-Sm2O3,nano-ZrO2(3Y) powder was used as raw materials for composite doping. The densification of bodies sintered at 1300℃were over 88% ,the maximum was 98.1 % of the sample with 2.0 mol% Sm2O3. The phase of samples sintered transited from tetragonal to cubic,with adding Sm2O3. When the addition of Sm2O3 was up 5.0 mol% ,the phase of the samples was cubic. The conductivity of the sample with 1.0 mol% Sm2O3 slightly decreased. The conductivity of the one of 2.0 mol% was increase. The conductivity of the one of 5.0 mol% was the maximum, the conductivity was 5.2×10-2 S cm-1 at 1000℃,higher than the one of the samples of ZrO2(8Y) in the same condition.

关 键 词：ZrO2(3Y) Sm2O 复合掺杂 致密度 晶相 电导率 

分 类 号：TF801[冶金工程—有色金属冶金]