| Ti4+取代Zn2+、Nb5+对Bi2O3-ZnO-Nb2O5系介质材料结构和性能的影响 |
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| 引用本文： | 刘艳平,姚熹,张良莹. Ti4+取代Zn2+、Nb5+对Bi2O3-ZnO-Nb2O5系介质材料结构和性能的影响[J]. 功能材料, 2002, 33(6): 631-632 |
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| 作者姓名： | 刘艳平 姚熹 张良莹 |
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| 作者单位： | 同济大学功能材料研究所,上海,20092;同济大学功能材料研究所,上海,20092;同济大学功能材料研究所,上海,20092 |
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| 基金项目： | 上海市重点学科建设资助项目 |
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| 摘 要： | 研究了Ti4 取代Zn2 ,Nb5 对Bi2O3-ZnO-Nb2O5系介质材料结构和性能的影响,研究表明,少量替代对于材料的结构和性能没有太大的影响;随着替代量的增加,相结构中出现正交Bi4Ti3O12相;微观形貌中出现棒晶,介电常数逐渐增大,温度系数逐渐向负温度系数方向移动,适量Ti4 替代可以获得性能很好的NP0介质材料。
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| 关 键 词： | Bi2O3-ZnO-Nb2O5系 介质材料 结构和性能 |
| 文章编号： | 1001-9731(2002)06-0631-02 |
| 修稿时间： | 2001-11-13 |
Effect of Ti4+ substation on the structure and dielectric properties of Bi2O3-ZnO-Nb2O5 based ceramics |
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| LIU Yan ping,YAO Xi,ZHANG Liang ying. Effect of Ti4+ substation on the structure and dielectric properties of Bi2O3-ZnO-Nb2O5 based ceramics[J]. Journal of Functional Materials, 2002, 33(6): 631-632 |
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| Authors: | LIU Yan ping YAO Xi ZHANG Liang ying |
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| Abstract: | Effect of Ti 4+ substation on the structure and dielectric properties of Bi 2O 3 ZnO Nb 2O 5 based ceramics were investigated. The phase and microstructure varies slightly after a little substation. With the increasing of Ti 4+ substation, orthorhombic Bi 4Ti 3O 12 phase appears and some club shaped crystal come forth correspondingly. Further study shows that increasing the value of Ti 4+ substation increase dielectric constant and make temperature coefficient of dielectric constant decrease to negative. The result of dielectric behaviors indicates that proper Ti 4+ substation can be an effective way to get NP0 dielectric materials. |
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| Keywords: | Bi 2O 3 ZnO Nb 2O 5 ceramics dielectric properties structure |
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