| ACu3Ti4O12(A=Ca, Sr, Ba)的介电性能 |
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| 引用本文： | 尤景汉,李同伟,李立本,王 辉.ACu3Ti4O12(A=Ca, Sr, Ba)的介电性能[J].稀有金属材料与工程,2010,39(6):1037-1040. |
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| 作者姓名： | 尤景汉 李同伟 李立本 王 辉 |
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| 作者单位： | 河南科技大学,河南,洛阳,471003 |
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| 基金项目： | 国家自然科学基金，河南省教育厅自然科学研究项，河南科技大学青年基金 |
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| 摘 要： | 利用传统固相反应法制备理想摩尔配比的CaCu3Ti4O12(CCTO)、SrCu3Ti4O12(SCTO)和BaCu3Ti4O12(BCTO)陶瓷样品,测量它们在不同频率下的介电常数和介电损耗随温度的变化关系.结果发现,CaCu3Ti4O12的介电性能基本上属于德拜弛豫,而造成SCTO和BCTO与CCTO介电性能差异巨大的原因是结构的畸变和杂相的出现.
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| 关 键 词： | 介电常数 介电损耗 德拜弛豫 |
| 收稿时间： | 6/1/2009 12:00:00 AM |
Dielectric Properties of ACu3Ti4O12 (A=Ca, Sr, Ba) |
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| You Jinghan,Li Tongwei,Li Liben and Wang Hui.Dielectric Properties of ACu3Ti4O12 (A=Ca, Sr, Ba)[J].Rare Metal Materials and Engineering,2010,39(6):1037-1040. |
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| Authors: | You Jinghan Li Tongwei Li Liben and Wang Hui |
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| Affiliation: | Henan University of Science and Technology, Luoyang 471003, China |
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| Abstract: | CaCu3Ti4O12(CCTO), SrCu3Ti4O12(SCTO) and BaCu3Ti4O12(BCTO) ceramics with ideal molar ratio were prepared by the traditional solid-state reaction method. The temperature dependence of dielectric constant and dielectric loss at different frequencies for the samples were measured. It is found that the dielectric properties of CaCu3Ti4O12 are attributed to Debye relaxation theory, while the great difference of the dielectric properties between SCTO, BCTO and CCTO comes from the aberrance of structure and the appearance of impurity |
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| Keywords: | CaCu3Ti4O12 |
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