| Sm2O3掺杂(Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3无铅压电陶瓷的制备与性能 |
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| 引用本文： | 崔业让,刘心宇,袁昌来,翟霞,胡耀斌,李若雯.Sm2O3掺杂(Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3无铅压电陶瓷的制备与性能[J].无机材料学报,2012(7):731-734. |
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| 作者姓名： | 崔业让 刘心宇 袁昌来 翟霞 胡耀斌 李若雯 |
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| 作者单位： | 桂林电子科技大学广西信息材料重点实验室;中南大学材料科学与工程学院 |
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| 基金项目： | 广西省自然科学基金(2010GXNSFD013007);广西信息材料重点实验室主任基金(桂科能0710908-15-Z)~~ |
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| 摘 要： | 采用固相合成法制备了Sm2O3掺杂的(Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3(BCZT)无铅压电陶瓷.借助XRD、SEM等手段对该陶瓷的显微结构与电性能进行了研究.结果表明,Sm2O3的掺杂降低了BCZT无铅压电陶瓷的烧结温度并使居里温度点Tc从85℃提高到95℃.当Sm2O3掺杂量为0.02wt%～0.1wt%时,样品具有典型ABO3型钙钛矿结构.Sm2O3掺杂量为0.02wt%时,所得陶瓷样品具有最优综合电性能,其压电常数d33、机电耦合系数kp、机械品质因子Qm、介电损耗tanδ和介电常数εr分别为590 pC/N、0.52、43、1.3%和3372.
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| 关 键 词： | 无铅压电陶瓷 Sm2O3 压电性能 钙钛矿 |
Preparation and Properties of Sm2O3 Doped (Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3 Lead-free Piezoelectric Ceramics |
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| CUI Ye-Rang,LIU Xin-Yu,YUAN Chang-Lai,ZHAI Xia,HU Yao-Bin,LI Ruo-Wen.Preparation and Properties of Sm2O3 Doped (Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3 Lead-free Piezoelectric Ceramics[J].Journal of Inorganic Materials,2012(7):731-734. |
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| Authors: | CUI Ye-Rang LIU Xin-Yu YUAN Chang-Lai ZHAI Xia HU Yao-Bin LI Ruo-Wen |
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| Affiliation: | 1(1.Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology,Guilin 541004,China;2.College of Material Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Sm2O3 doped(Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3(BCZT) lead-free piezoelectric ceramics were prepared by solid state synthesis method.The microstructure and electrical properties of prepared ceramics were investigated by XRD,SEM and other techniques.The results demonstrate that Sm2O3 doping reduces sintering temperature of BCZT lead-free piezoelectric ceramics and increases the Curie temperature Tc from 85℃ to 95℃.BCZT ceramics doped with 0.02wt%–0.1wt% Sm2O3 possess a typical ABO3type perovskite structure.With the doping of 0.02wt% Sm2O3,the BCZT ceramics show the optimum electrical properties,and its piezoelectric constant d33,electromechanical coupling factor kp,mechanical quality factor Qm,dielecteic loss tanδ and relative dielectric constant εr reach 590 pC/N,0.52,43,1.3% and 3372,respectively. |
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| Keywords: | lead-free piezoelectric ceramics Sm2O3 piezoelectric property perovskite |
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