| [(Bi_(1-x-y)La_x)Na_(1-y)]_(0.5)Ba_yTiO_3压电陶瓷的性能与微结构 |
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| 引用本文： | 赁敦敏,肖定全,朱建国,余萍,庄严.[(Bi_(1-x-y)La_x)Na_(1-y)]_(0.5)Ba_yTiO_3压电陶瓷的性能与微结构[J].电子元件与材料,2004,23(11):1-3. |
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| 作者姓名： | 赁敦敏 肖定全 朱建国 余萍 庄严 |
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| 作者单位： | 1. 四川大学材料科学与工程学院材料科学系,四川,成都,610064
2. 广州杰赛科技股份有限公司,广东,广州,510310 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金，国家高技术研究发展计划(863计划)，高等学校博士学科点专项科研项目，50410179，59972020，2001-AA325060，20030610035，，，， |
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| 摘 要： | 针对钛酸铋钠(Bi0.5Na0.5TiO3)基无铅压电铁电材料,提出了新型的ABO3型A位多重复合无铅压电陶瓷体系(Bi1-x-yLax)Na1-y]0.5BayTiO3;利用传统陶瓷工艺和电子陶瓷公司生产中使用的原料,制备了该体系陶瓷;研究了该陶瓷的压电性质与微观结构。研究结果表明,该体系陶瓷具有单相钙钛矿结构;其压电常数d33可达183 pC/N,其机电耦合系数kp可达0.355;适量La3+对Bi3+的取代改善了压电性能;在1 175℃,2 h的烧结条件下,能够获得致密的(Bi1-x-yLax)Na1-y]0.5BayTiO3陶瓷;La3+的引入抑制了晶粒的生长,高La含量的陶瓷晶粒较小。
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| 关 键 词： | 电子技术 钛酸铋钠 无铅压电陶瓷 压电性质 微观结构 |
| 文章编号： | 1001-2028(2004)11-0001-03 |
| 修稿时间： | 2004年8月26日 |
Studies on the Properties and Microstructures of [(Bi1-x-yLax)Na1-y]0.5BayTiO3 Lead-free Piezoelectric Ceramics |
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| LIN Dun-min,XIAO Ding-quan,ZHU Jian-guo,YU Ping,ZHUANG Yan.Studies on the Properties and Microstructures of [(Bi1-x-yLax)Na1-y]0.5BayTiO3 Lead-free Piezoelectric Ceramics[J].Electronic Components & Materials,2004,23(11):1-3. |
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| Authors: | LIN Dun-min XIAO Ding-quan ZHU Jian-guo YU Ping ZHUANG Yan |
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| Affiliation: | LIN Dun-min1,XIAO Ding-quan1,ZHU Jian-guo1,YU Ping1,ZHUANG Yan2 |
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| Abstract: | New (Bi1-x-yLax)Na1-y]0.5BayTiO3 lead-free piezoelectric ceramics were developed based on the design of the multiple complex in the A-site of ABO3-type Bi0.5Na0.5TiO3 ferroelectrics, and the ceramics were prepared by the conventional ceramic sintering technique. Piezoelectric properties,dielectric properties and microstructures of (Bi1-x-yLax)Na1-y]0.5BayTiO3 lead-free piezoelectric ceramics were also studied. The measurements of piezoelectric properties reveal that this systems provides a high piezoelectric performance: d33=183pC/N,kp=0.355. The ceramics were well sintered at 1175℃ for 2 hours. La3+ suppresses the growing up of grains, and the size of those grains of the ceramics with high La3+ concentration is smaller than that with low La3+ concentration. |
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| Keywords: | electronic technology [(Bi1-x-yLax)Na1-y]0 5BayTiO3 lead-free piezoelectric ceramics piezoelectric properties microstructure |
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