| (Y2O3,CaO)复合掺杂ZrO2材料的交流复阻抗研究 |
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| 引用本文： | 李英,唐子龙,龚江宏,张中太.(Y2O3,CaO)复合掺杂ZrO2材料的交流复阻抗研究[J].功能材料,2001,32(3):282-284. |
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| 作者姓名： | 李英 唐子龙 龚江宏 张中太 |
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| 作者单位： | 1. 中国科学院,化工冶金研究所,
2. 清华大学,材料科学与工程系, |
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| 摘 要： | 借助交流复抗技术对（1－0.08y-0.12x-ZrO2-0.08yY2O3-0.12xCaO(x y=1,x:0-1）系统在523－973K内的导电行为进行了研究，发现随着CaO含量增加，该系统的晶粒电导活化能的增加，而晶界电导活化能则呈现先降后升的趋势。本文对上述现象进行了初步分析。
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| 关 键 词： | ZrO2－Y2O3－CaO系统 电导率 复阻抗技术 电导活化能 晶界效应 |
| 文章编号： | 1001-9731(2001)03-0282-03 |
| 修稿时间： | 2000年1月17日 |
AC complex impedance study of zirconia doped with yttria and calcia |
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| LI Ying,TANG Zi-long,GONG Jiang-hong,ZHANG Zhong-tai.AC complex impedance study of zirconia doped with yttria and calcia[J].Journal of Functional Materials,2001,32(3):282-284. |
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| Authors: | LI Ying TANG Zi-long GONG Jiang-hong ZHANG Zhong-tai |
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| Abstract: | The electrical behavior in the temperature range from 523K to 973K of the system (1- 0. 08y- 0. 12x) ZrO2- 0. 08y Y2O3 - 0. 12xCaO (x+y=1, x: 0~1) was studied by means of the complex impedance technique. It was shown that, with the increasing CaO content in the system, the activation energy for lattice conduction increases, while that for grain-boundary conduction first decreases and then increases. Preliminary analysis to these phenomena was also presented in this paper. |
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| Keywords: | ZrO2-Y2O3-CaO system conductivity complex impedance technique activation energy for conduction boundary effect |
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