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《Journal of Hefei University of Technology(Natural Science)》 2006-06
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Relationship between ionic conductivity and valence electron structure of LaGaO_3 based ceramics

SHI Min,XU Yu-dong,LIU Ning,WANG Can,YUAN Yu-peng(School of Material Science and Engineering,Hefei University of Technology,Hefei 230009,China)  
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.
【Fund】: 国家留学回国人员基金资助项目([2003]14号);; 合肥工业大学科学研究发展基金资助项目(050302F)
【CateGory Index】: O611.3
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