| Bi0.5(Na0.8K0.2)0.5TiO3-(Bi1-yLay)FeO3压电陶瓷的制备和性能 |
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| 引用本文： | 刘育芳,廖运文,毛丽君,李伟,蒲红玉,张林慧,姜宁.Bi0.5(Na0.8K0.2)0.5TiO3-(Bi1-yLay)FeO3压电陶瓷的制备和性能[J].压电与声光,2011,33(6). |
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| 作者姓名： | 刘育芳 廖运文 毛丽君 李伟 蒲红玉 张林慧 姜宁 |
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| 作者单位： | 1. 化学合成与污染控制四川重点实验室,四川南充,637009
2. 化学合成与污染控制四川重点实验室,四川南充637009;西华师范大学应用化学研究所,四川南充637009 |
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| 基金项目： | 四川省教育厅重点基金资助项目(2006A05) |
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| 摘 要： | 采用传统固相法制备了新型(1-x)Bi0.5(Na0.8K0.2)0.5TiO3-x(Bi1-yLay)FeO3无铅压电陶瓷,利用了XRD、SEM等测试技术表征了该陶瓷的晶体结构、表面形貌、介电和压电性能.研究结果表明,在所研究的组成范围内陶瓷材料均能形成纯的钙钛矿结构固溶体,陶瓷晶粒尺寸随x、y的增加而增加.压电性能随x的增加先增加后减少,随y的增加先减小后增大,在x=0.005,y=0.9时,压电常数及机电耦合系数达到最大值(d33=149 pC/N,kp=0.27).
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| 关 键 词： | 钛酸铋钠 无铅压电陶瓷 压电性能 钙钛矿结构 |
Preparation and Properties of Bi_(0.5)(Na_(0.8)K_(0.2))_(0.5)TiO_3-(Bi_(1-y)La_y)FeO_3 Lead-free Piezoelectric Ceramics |
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| LIU Yufang
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LIAO Yunwen
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MAO Lijun
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LI Wei
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PU Hongyu
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ZHANG Linhui
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JIANG Ning.Preparation and Properties of Bi_(0.5)(Na_(0.8)K_(0.2))_(0.5)TiO_3-(Bi_(1-y)La_y)FeO_3 Lead-free Piezoelectric Ceramics[J].Piezoelectrics & Acoustooptics,2011,33(6). |
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| Authors: | LIU Yufang LIAO Yunwen MAO Lijun LI Wei PU Hongyu ZHANG Linhui JIANG Ning |
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| Affiliation: | LIU Yufang1,LIAO Yunwen1,2,MAO Lijun1,LI Wei1,PU Hongyu1,ZHANG Linhui1,JIANG Ning1(1.Key Lab.of Chemical Synthesis and Pollution Control of Sichuan Province,Nanchong 637009,China,2.Institute of Applied Chemistry,China West Normal University,China) |
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| Abstract: | A new Bi0.5(Na0.8K0.2)TiO3-based lead-free piezoelectric ceramics(1-x)Bi0.5(Na0.8K0.2)0.5TiO3-x(Bi1-yLay)FeO3 was prepared by the conventional ceramic sintering technique.The microstructure,shape,dielectric and piezoelectric properties were studied by X-ray diffraction(XRD) and the scanning electron microscope(SEM) etc.The results showed that all the ceramics investigated could form a pure perovskite phase,the grain size were increased with the increase of x and y.The piezoelectric and dielectric properties... |
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| Keywords: | sodium bismuth titanate lead-free piezoelectric ceramics piezoelectric properties perovskites structure |
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