| BiFeO_3掺杂对CaCu_3Ti_4O_(12)陶瓷结构和介电性能的影响 |
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| 引用本文： | 郑兴华,刘馨,汤德平,刘旭俐,郑可炉.BiFeO_3掺杂对CaCu_3Ti_4O_(12)陶瓷结构和介电性能的影响[J].电子元件与材料,2010,29(3). |
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| 作者姓名： | 郑兴华 刘馨 汤德平 刘旭俐 郑可炉 |
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| 作者单位： | 1. 福州大学,材料科学与工程学院,福建,福州,350108
2. 福州大学,物理与信息工程学院,福建,福州,350108 |
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| 基金项目： | 福建省高等学校新世纪优秀人才支持计划资助项目(NoXSJRC2007—16);;福建省属高校资助项目(No2007F5002);;福州大学发展基金资助项目(No2007—XQ—01) |
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| 摘 要： | 采用固相反应法制备了BiFeO3掺杂的CaCu3Ti4O12(CCTO)陶瓷,研究了BiFeO3掺杂量对CCTO陶瓷的烧结性能、晶体结构和介电性能的影响。结果表明,BiFeO3掺杂改善了CCTO陶瓷的烧结性能。随BiFeO3掺杂量的增加,CCTO陶瓷的晶格常数和εr均先增大而后减小;而tanδ先几乎不变而后增大。当x(BiFeO3)为0.5%,1040℃烧结的CCTO陶瓷样品在1kHz时具有巨介电常数(εr=14559)和较低的介质损耗(tanδ=0.12)。
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| 关 键 词： | CaCu3Ti4O12 BiFeO3 巨介电常数 固相反应法 |
Effects of BiFeO_3 doping on the structure and dielectric properties of CaCu_3Ti_4O_(12) ceramics |
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| ZHENG Xinghua,LIU Xin,TANG Deping,LIU Xuli,ZHENG Kelu.Effects of BiFeO_3 doping on the structure and dielectric properties of CaCu_3Ti_4O_(12) ceramics[J].Electronic Components & Materials,2010,29(3). |
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| Authors: | ZHENG Xinghua LIU Xin TANG Deping LIU Xuli ZHENG Kelu |
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| Affiliation: | 1.College of Materials Science and Engineering;Fuzhou University;Fuzhou 350108;China;2.College of Physics and Telecommunication Engineering;China |
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| Abstract: | BiFeO3 doped CaCu3Ti4O12(CCTO) ceramics were prepared using the solid state reaction method.The effects of BiFeO3 doping amount on the sintering characteristic,crystal structure and dielectric properties of CCTO ceramics were investigated.The results show that the sintering characteristic of CCTO ceramics is improved by BiFeO3 doping.With the increase of BiFeO3 doping amount,the lattice constants and relative permittivity of CCTO ceramics increase at first,then gradually decrease.However,dielectric loss cha... |
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| Keywords: | CaCu3Ti4O12 BiFeO3 giant permittivity solid state reaction method |
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