| CaFeO_(2.5)掺杂对PSZT压电陶瓷微观结构及电性能的影响 |
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| 引用本文： | 孙娜,徐志军,程仁飞,陈明丽,姬万滨.CaFeO_(2.5)掺杂对PSZT压电陶瓷微观结构及电性能的影响[J].聊城大学学报(自然科学版),2014(4):95-99. |
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| 作者姓名： | 孙娜 徐志军 程仁飞 陈明丽 姬万滨 |
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| 作者单位： | 聊城大学 材料科学与工程学院,山东 聊城,252059 |
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| 基金项目： | 国家863计划资助项目(2013AA030801)；国家自然科学基金(51372110；51302124)；山东省自然科学基金资助项目(ZR2012EMM004)；聊城大学大学生创新基金 |
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| 摘 要： | 采用常规固相法制备了CaFeO2.5掺杂改性的Pb0.95Sr0.05(Ti0.47Zr0.53)O3压电陶瓷.利用X射线衍射、扫描电镜、精密阻抗分析仪等技术分析表征了该体系的微观结构及电性能.结果表明:CaFeO2.5掺杂促进了PSZT陶瓷的致密化,抑制了晶粒长大.CaFeO2.5掺杂引起晶格畸变,随CaFeO2.5掺杂量的增加,四方晶格发生膨胀,四方度增大;缺陷偶极子增加,降低了压电性能并出现了类似于反铁电性质的电滞回线"束腰"现象.
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| 关 键 词： | CaFeO2.5 电性能 微观结构 双电滞回线 |
The Effects CaFeO2 .5 Substitution on the Microstructure and Electrical Properties of Pb0 .95 Sr0 .05 (Ti0 .47 Zr0 .53)O3 Piezoceramics |
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| SUN Na,XU Zhi-jun,CHENG Ren-fei,CHEN Ming-li,JI Wan-bin.The Effects CaFeO2 .5 Substitution on the Microstructure and Electrical Properties of Pb0 .95 Sr0 .05 (Ti0 .47 Zr0 .53)O3 Piezoceramics[J].Journal of Liaocheng University:Natural Science Edition,2014(4):95-99. |
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| Authors: | SUN Na XU Zhi-jun CHENG Ren-fei CHEN Ming-li JI Wan-bin |
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| Institution: | (School of Material Sciences and Engineering, Liaocheng University, Liaocheng 252059, China) |
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| Abstract: | Pb0.95Sr0.05（Ti0.47Zr0.53）O3piezoceramics were fabricated using the conventional solid state reaction technique.The influence of CaFeO2.5substitution on the Pb0.95Sr0.05（Ti0.47Zr0.53）O3piezoceramics is investigated.XRD,SEM,Precise Impedance Analysis and regular piezoelectric properties test measures are used to characterize the microstructure,dielectric properties and piezoelectricity of the ceramics.It＇s shown that CaFeO2.5substitution promotes the densification of the ceramics and the grain growth is inhibited.CaFeO2.5substitution also leads to the crystal structure distortion.With increasing CaFeO2.5content the tetragonal crystal structure expands and the tetragonality and the defect dipoles increases.The piezoelectricity is decreased and the girdling on the ferroelectric loops which is familiar with cases in the antiferroelctrics is found with the CaFeO2.5substitution. |
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| Keywords: | CaFeO2 5 electrical properties microstructure double hysteresis loops |
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