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首页> 外文期刊>Journal of the European Ceramic Society >Large electrostrain and structural evolution in (1-x)[0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)]-xAgNbO(3) ceramics
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Large electrostrain and structural evolution in (1-x)[0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)]-xAgNbO(3) ceramics

机译：（1-x）中的大电钻刀和结构演进[0.94bi（0.5）na（0.5）tiO（3）-0.06batio（3）] - XAGNBO（3）陶瓷

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摘要

A lead-free system formulated as (1-x)[0.94Bi(0.5)Na(0.5)TiO(3)-0.06BaTiO(3)]-xAgNbO(3) exhibits an electrostrain of 0.50% at 80 kV/cm and a maximum d(33)(*) of 721 pm/V at 60 kV/cm for x = 0.3. The incorporation of AgNbO3 shifts the relaxor-ferroelectric phase transformation temperature (T(F-R) )to(r)oom temperature and lowers the energy barrier of the field-induced phase transformation. Furthermore, the in-situ electric field dependent high-energy synchrotron X-ray diffraction (SXRD) technique reveals that the sample x = 0.03 transforms from dominant P4bm phase to a phase mixture of R3c + P4mm at 55 kV/cm during the electric field loading, and returns to initial dominant P4bm phase at 15 kV/cm during the unloading cycle of the electric field. Furthermore, it can be demonstrated that the electric field induced-phase transition in NBTBT-3AN occurs in the whole sample, rather than in the single direction of electric field. Therefore, the electrocstrain in NBTBT-3AN is more uniform, which would be beneficial to its actuator applications.
机译：配制为（1-x）的无铅系统[0.94bi（0.5）na（0.5）TiO（3）-0.06batio（3）] - XAGNBO（3）在80kV / cm处显示出0.50％的电泌虫。在60kV / cm的721 pm / v的最大d（33）（*），用于x = 0.3。 AGNBO3的掺入将松弛剂 - 铁电相变换温度（T（F-R））转移到（R）Oom温度，并降低现场诱导的相变的能量屏障。此外，原位电场依赖性高能量同步调节X射线衍射（SXRD）技术揭示了样品X = 0.03在电场期间从主导P4BM相转变为55kV / cm的R3C + P4mm的相混合物在电场的卸载循环期间加载，并在15 kV / cm处返回初始主导P4bm相位。此外，可以证明NBTBT-3AN中的电场诱导相转变发生在整个样本中，而不是在电场的单个方向上发生。因此，NBTBT-3AN中的电容更均匀，这将有利于其执行器应用。

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  • 来源
  • 作者

    Ren Pengrong; Liu Zicheng; Liu Hui; Sun Shengdong; Wan Yuhui; Long Changbai; Shi Jing; Chen Jun; Zhao Gaoyang;

  • 作者单位

    Xian Univ Technol Sch Mat Sci &

    Engn Shaanxi Prov Key Lab Elect Mat &

    Infiltrat Techno Xian 710048 Shaanxi Peoples R China;

    Xian Univ Technol Sch Mat Sci &

    Engn Shaanxi Prov Key Lab Elect Mat &

    Infiltrat Techno Xian 710048 Shaanxi Peoples R China;

    Univ Sci &

    Technol Beijing Dept Phys Chem Beijing 100083 Peoples R China;

    Univ Sci &

    Technol Beijing Dept Phys Chem Beijing 100083 Peoples R China;

    Xian Univ Technol Sch Mat Sci &

    Engn Shaanxi Prov Key Lab Elect Mat &

    Infiltrat Techno Xian 710048 Shaanxi Peoples R China;

    Air Force Engn Univ Aeronaut &

    Astronaut Engn Coll Sci &

    Technol Plasma Dynam Lab Xian 710038 Shaanxi Peoples R China;

    Xidian Univ Sch Electromech Engn Xian 710071 Shaanxi Peoples R China;

    Univ Sci &

    Technol Beijing Dept Phys Chem Beijing 100083 Peoples R China;

    Xian Univ Technol Sch Mat Sci &

    Engn Shaanxi Prov Key Lab Elect Mat &

    Infiltrat Techno Xian 710048 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 陶瓷工业;
  • 关键词

    Bi0.5Na0.5NbO3; AgNbO3; Electrostrain; Piezoelectrics;

    机译：Bi0.5na0.5nbo3;Agnbo3;电裆;压电;

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