研究了La1-xSrxMnO3导电陶瓷的导电性和红外吸收.结果表明,随着x的增加,电阻率减小.在x=0.5时,出现电阻率最小值,然后随着x的增加电阻率进一步增加.具有最大红外吸收峰的导电陶瓷对应最小的电阻率.同时,探讨了La1-xSrxMnO3导电陶瓷的导电机理.
Conductivity and infrared absorption of La1- xSrxMnO3 conductive ceramics were investigated. Results show that the resistivity decreases with increasing x, undergoes a minimum at x=0.5, and then increases with further increases of x. The conductive ceramics with the largest infrared absorption peak correspond to the smallest resistivity. And the conductive mechanism of La1- xSrxMnO3 conductive cera- mics is analyzed.
参考文献
| [1] | Wang Cheng- jian;Xiao Ming- shan .Study on Conductivity of LaxBa1- xCoO3 System Ceramics[J].Journal of the Chinese Rare Earth Society,1997,15:281. |
| [2] | Wang Cheng- jian;Xiao Ming- shan .Study on Micro-structure and Electric Character of LaxBa1-xCoO3 System Conductive Ceramics[J].Journal of Functional Materials,1997(28):506. |
| [3] | Xiao Ming- shan;Wang Cheng- jian .Study on Conductivity of La1- xBaxMnO3 System Conductive Ceramics[J].Journal Shandong University,1976(31):1. |
| [4] | Wang Cheng- jian;Xiao Ming- shan .Conductivity and Infrared Absorption of La1- xBaxCoO3 Conductive Ceramics[J].Journal of Solid State Chemistry,1998,137:211. |
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