| 准同型相界处BNBT无铅压电陶瓷的研究 |
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| 引用本文： | 李晓娟,龙伟,张永元.准同型相界处BNBT无铅压电陶瓷的研究[J].陕西理工学院学报(自然科学版),2008,24(3). |
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| 作者姓名： | 李晓娟 龙伟 张永元 |
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| 作者单位： | 1. 西安工业大学,材料与化工学院,陕西,西安,710032
2. 西安科技大学,基础部,陕西,西安,710054 |
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| 摘 要： | 探索了准同型相界处BNT—BT（简称BNBT）二元体系无铅压电陶瓷的制备工艺及制备条件。采用XRD、SEM等测试技术，分析了制备工艺和制备条件对准同型相界处BNBT压电陶瓷晶体的微观结构、压电性能、介电性能等的影响，从而确定出最佳的制备工艺和制备条件。利用谐振-反谐振法得出最佳制备条件下制备的BNBT无铅压电陶瓷的介电性、压电性分别为：d33=120pC／N，εr=626，kp=20．34％，Qm=205．34。
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| 关 键 词： | BNBT 无铅压电陶瓷 结构 电学性能 |
Studies of BNBT lead-free piezoelectric ceramic at MPB |
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| LI Xiao-juan,LONG Wei,ZHANG Yong-yuan.Studies of BNBT lead-free piezoelectric ceramic at MPB[J].Journal of Shananxi University of Technology:Natural Science Edition,2008,24(3). |
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| Authors: | LI Xiao-juan LONG Wei ZHANG Yong-yuan |
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| Abstract: | In this paper,the two systems of production technics and production conditions of BNT-BT(abbreviation BNBT)(lead-free piezoelectric ceramic) were explored at morphotropic phase boundary(MPB).The effects of production technics and production conditions on microstructure,dielectric properties and piezoelectric properties of BNBT lead-free piezoelectric ceramic were analyzed by XRD,SEM etc.Measuring techniques,and the optimal production technics and production conditions were confirmed.Under the optimal produc... |
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| Keywords: | BNBT lead-free piezoelectric ceramic structure electric propertie |
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