| Li+替代Bi3+对BZN陶瓷介电性能的影响 |
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| 引用本文： | 张东,丁士华,宋天秀,杨秀玲.Li+替代Bi3+对BZN陶瓷介电性能的影响[J].电子元件与材料,2009,28(1). |
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| 作者姓名： | 张东 丁士华 宋天秀 杨秀玲 |
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| 作者单位： | 西华大学,材料科学与工程学院,四川,成都,610039;西华大学,材料科学与工程学院,四川,成都,610039;西华大学,材料科学与工程学院,四川,成都,610039;西华大学,材料科学与工程学院,四川,成都,610039 |
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| 基金项目： | 四川省教育厅资助项目，西华大学校人才基金 |
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| 摘 要： | 采用固相反应法制备了Bi2-xLix(Zn1/3Nb2/3)O7陶瓷,研究了Li+部分替代Bi3+对陶瓷相结构和介电性能的影响。结果表明:当替代量0
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| 关 键 词： | 无机非金属材料 BZN陶瓷 单斜焦绿石相 替代 介电弛豫 |
Effects of substitution of Li~+ for Bi~(3+) on the dielectric properties of BZN ceramics |
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| ZHANG Dong,DING Shihua,SONG Tianxiu,YANG Xiuling.Effects of substitution of Li~+ for Bi~(3+) on the dielectric properties of BZN ceramics[J].Electronic Components & Materials,2009,28(1). |
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| Authors: | ZHANG Dong DING Shihua SONG Tianxiu YANG Xiuling |
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| Institution: | College of Materials Science and Engineering;Xihua University;Chengdu 610039;China |
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| Abstract: | (Bi2-xLix)(Zn1/3Nb2/3)2O7 ceramics were prepared by a solid phase reaction method. The effects of partial substitution of Li+ for Bi3+ on the phase structures and dielectric properties of (Bi2-xLix)(Zn1/3Nb2/3)2O7 ceramics were investigated. The results show that (Bi2-xLix)(Zn1/3Nb2/3)2O7 ceramics have single monoclinic pyrochlore phase when 0< x ≤0.100. The relaxation phenomenon of the tanδ is obviously observed at –30 ~ +130 ℃. A defect dipole model is used to explain this phenomenon. When x increases from 0.025 to 0.050 and 0.075 then 0.100, the peak temperature of tanδ for Li-doped samples are –10,15,30 and 65 ℃ respectively,and the temperature coefficient of permittivity increases firstly, then decreases at 1 MHz. |
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| Keywords: | non-metallic inorganic material BZN ceramic monoclinic pyrochlore phase substitution dielectric relaxation |
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