| La9.33Si6O26基氧离子导电复合材料的制备与导电性 |
| |
| 引用本文： | 刘超峰,张鸿,夏俊霄,李根,李志成.La9.33Si6O26基氧离子导电复合材料的制备与导电性[J].无机材料学报,2011(10):1043-1048. |
| |
| 作者姓名： | 刘超峰 张鸿 夏俊霄 李根 李志成 |
| |
| 作者单位： | 中南大学材料科学与工程学院;中南大学有色金属材料科学与工程教育部重点实验室; |
| |
| 基金项目： | 国家自然科学基金(50872155)~~ |
| |
| 摘 要： | 采用改性共沉淀法合成了La9.33Si6O26-10wt%Zr0.86Y0.14O1.92两相共存的氧离子导电复合材料,利用X射线衍射、扫描电子显微镜、交流阻抗技术分别表征了材料的相组成、微观组织和离子导电性.结果表明,复合材料粉体平均晶粒尺寸为35 nm,烧结块体的平均颗粒尺寸为500 nm;在300～700℃温度范围内,复合材料的导电率均高于La9.33Si6O26或Zr0.86Y0.14O1.92单相材料,且700℃时比La9.33Si6O26高出1个数量级.结合交流阻抗谱及电模量谱对复合材料的导电机理进行了分析讨论.
|
| 关 键 词： | La9.33Si6O26 Zr0.86Y0.14O1.92 复合材料 共沉淀法 离子导电性 |
Fabrication and Conductivity of La_(9.33)Si_6O_(26)-based Composite Oxygen-ionic Conductor |
| |
| LIU Chao-Feng,ZHANG Hong,XIA Jun-Xiao,Li Gen,LI Zhi-Cheng.Fabrication and Conductivity of La_(9.33)Si_6O_(26)-based Composite Oxygen-ionic Conductor[J].Journal of Inorganic Materials,2011(10):1043-1048. |
| |
| Authors: | LIU Chao-Feng ZHANG Hong XIA Jun-Xiao Li Gen LI Zhi-Cheng |
| |
| Affiliation: | LIU Chao-Feng,ZHANG Hong,XIA Jun-Xiao,Li Gen,LI Zhi-Cheng(1.School of Materials Science and Engineering,Central South University,Changsha 410083,China,2.Key Laboratory of Non-ferrous Metal Materials Science and Engineering,Ministry of Education,China) |
| |
| Abstract: | The oxygen-ionic conductor of La9.33Si6O26-10wt% Zr0.86Y0.14O1.92 composite material was prepared by using a modified co-precipitation method.X-ray diffraction,scanning electron microscope and complex impedance were adopted to investigate the phase component,microstructures and conductivities of the composite material,re-spectively.The results show that the average grain size of the as-calcined powder is 35 nm and the average particle size of the as-sintered composite ceramic is about 500 nm.The conductivit... |
| |
| Keywords: | La9 33Si6O26 Zr0 86Y0 14O1 92 composite material co-precipitation method ionic conductivity |
| 本文献已被 CNKI 等数据库收录！ |
|
