| 镓酸镧基固体电解质离子导电性与价电子结构的关系 |
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| 引用本文： | 石敏,许育东,刘宁,汪灿,袁玉鹏.镓酸镧基固体电解质离子导电性与价电子结构的关系[J].合肥工业大学学报(自然科学版),2006,29(6):646-650. |
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| 作者姓名： | 石敏 许育东 刘宁 汪灿 袁玉鹏 |
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| 作者单位： | 合肥工业大学,材料科学与工程学院,安徽,合肥,230009 |
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| 基金项目： | 国家留学回国人员科研启动基金
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合肥工业大学校科研和教改项目 |
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| 摘 要： | 文章应用固体与分子经验电子理论计算了镓酸镧基固体电解质材料的价电子结构,计算结果表明,1/(nAnB)随x及y增加而增加。实验结果表明,当x、y小于20%时,电导率σ随x、y增加而增加,并随1/(nAnB)增加而电导率σ增加,通过价电子结构的计算,可预测不同成分的LSGM的电导率。
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| 关 键 词： | 价电子结构 Sr、Mg掺杂的镓酸镧 离子导电性 |
| 文章编号： | 1003-5060(2006)06-0646-05 |
| 修稿时间： | 2005年5月8日 |
Relationship between ionic conductivity and valence electron structure of LaGaO3 based ceramics |
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| SHI Min,XU Yu-dong,LIU Ning,WANG Can,YUAN Yu-peng.Relationship between ionic conductivity and valence electron structure of LaGaO3 based ceramics[J].Journal of Hefei University of Technology(Natural Science),2006,29(6):646-650. |
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| Authors: | SHI Min XU Yu-dong LIU Ning WANG Can YUAN Yu-peng |
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| Abstract: | The valence electron structures of Sr-and Mg-doped LaGaO_3 ceramics with different compositions were calculated by using the empirical electron theory(EET)of solids and molecules.The results of calculation show that 1/(n_An_B)increases with increasing of x and y.The results of experiment show that conductivity increases with increasing of x and y when x andy are less than 20%,and that conductivity increases with increasing of 1/(n_An_B)when x and y are less than 20%.Therefore the conductivity of LSGM with different x or y can be forecast by calculating valence electron structures of LSGM. |
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| Keywords: | valence electron structure Sr-and Mg-doped LaGaO_3 ionic conductivity |
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