| Ca掺杂(Bi_(0.5)Na_(0.5))TiO_3-BaTiO_3压电陶瓷结构与性能 |
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| 引用本文： | 刘甜甜,黄焱球,段星,晏秋实,张蓓.Ca掺杂(Bi_(0.5)Na_(0.5))TiO_3-BaTiO_3压电陶瓷结构与性能[J].电子元件与材料,2009,28(2). |
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| 作者姓名： | 刘甜甜 黄焱球 段星 晏秋实 张蓓 |
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| 作者单位： | 中国地质大学(武汉)材料科学与化学工程学院,湖北,武汉,430074 |
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| 摘 要： | 采用传统电子陶瓷工艺制备了(Bi0.5Na0.5)0.93(Ba1-xCax)0.07TiO3(x=0.02,0.04,0.06,0.08或0.10)陶瓷,研究了Ca掺杂量对陶瓷的结构、介电、压电性能的影响。结果表明,陶瓷样品均形成了单一的钙钛矿结构固溶体。陶瓷的介电、压电性能受Ca掺杂量的影响显著。所有陶瓷样品均表现出弥散相变特征。x=0.04时,室温εr达到最大值1451.7,且tanδ较小,为0.042;当x=0.06时,d33和kp达到最大,分别为140.5pC/N和19.7%。
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| 关 键 词： | 无机非金属材料 Bi0.5Na0.5TiO3-BaTiO3 无铅压电陶瓷 弥散相变 机电耦合系数 |
Structure and properties of Ca-doped Bi_(0.5)Na_(0.5)TiO_3-BaTiO_3 piezoelectric ceramics |
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| LIU Tiantian,HUANG Yanqiu,DUAN Xing,YAN Qiushi,ZHANG Bei.Structure and properties of Ca-doped Bi_(0.5)Na_(0.5)TiO_3-BaTiO_3 piezoelectric ceramics[J].Electronic Components & Materials,2009,28(2). |
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| Authors: | LIU Tiantian HUANG Yanqiu DUAN Xing YAN Qiushi ZHANG Bei |
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| Affiliation: | Faculty of Materials Science and Chemical Engineering;China University of Geosciences;Wuhan 430074 |
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| Abstract: | The (Bi0.5Na0.5)0.93(Ba1-xCax)0.07TiO3 (x = 0.02, 0.04, 0.06, 0.08 or 0.10) lead-free piezoelectric ceramics were prepared by the conventional electroceramic technology. The effects of Ca-doped amount on the phase structure, dielectric and piezoelectric properties of ceramics were investigated. The results show that all the ceramics are single-phase solid solutions with perovskite structure. The dielectric and piezoelectric properties of the ceramics are affected obviously by the Ca-doped amount. All the ce... |
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| Keywords: | Bi0 5Na0 5TiO3-BaTiO3 |
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