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首页> 外文期刊>Journal of materials science >High energy storage density and efficiency with excellent temperature and frequency stabilities under low operating field achieved in Ag_(0.91)Sm_(0.03)NbO_3-modified Na_(0.5)Bi_(0.5)TiO_3-BaTiO_3 ceramics
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High energy storage density and efficiency with excellent temperature and frequency stabilities under low operating field achieved in Ag_(0.91)Sm_(0.03)NbO_3-modified Na_(0.5)Bi_(0.5)TiO_3-BaTiO_3 ceramics

机译：在AG_（0.91）SM_（0.03）NBO_3改进的NA_（0.5）BI_（0.5）TIO_3-BATIO_3陶瓷中实现的低工作场（0.03）NBBO_3改装NA_（0.5）TIO_3-BATIO_3陶瓷，高储能密度和效率，在ag_（0.91）SM_（0.03）中的低工作场下

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摘要

Ag_(0.91)Sm_(0.03)NbO_3-modifiedNa_(0.5)Bi_(0.5)TiO_3-BaTiO_3 ceramics (0.94-x)Na_(0.5)Bi_(0.5)TiO_3-0.06BaTiO_3-x(Ag_(0.91)Sm_(0.03))NbO_3 (x = 0, 0.03, 0.06, and 0.09) were prepared by solid-state reaction method. The structural, dielectric, and energy storage properties of the ceramics were systematically studied. Our results indicate that all ceramics exhibit pure perovskite structure with dense microstructure. All the elements in the ceramic are homogeneously distributed. The sample with the doping level x = 0.09, possesses good temperature stability of the dielectric constant (△ε′/ε′_(150°C)≤ ± 15%) and low dielectric loss (<0.02) over a wide temperature of 84-318 °C. A large energy storage density value of W_(rec )= 2.12 J/cm~3, high efficiency of η = 83% under a low electric field of 18 kV/mm, as well as excellent temperature/frequency stabilities were simultaneously achieved in the sample. This work provides a viable way to design high energy storage performance lead-free ceramics operating at low fields.
机译：AG_（0.91）SM_（0.03）NBO_3-MODIEDNA_（0.5）BI_（0.5）TIO_3-BATIO_3陶瓷（0.94-X）NA_（0.5）BI_（0.5）TIO_3-0.06BATIO_3-X（AG_（0.91）SM_（0.03）通过固态反应方法制备NbO_3（x = 0,0.03,0.06和0.06）。系统地研究了陶瓷的结构，电介质和储能性能。我们的结果表明，所有陶瓷都表现出具有致密微观结构的纯Perovskite结构。陶瓷中的所有元素都是均匀分布的。具有掺杂水平X = 0.09的样品具有良好的温度稳定性（△ε'/ε'_（150°C）≤±15％），并且在宽温度下的低介电损耗（<0.02） -318°C。 W_（REC）= 2.12J / cm〜3的大储能密度值，在18kV / mm的低电场下高效率η= 83％，以及同时实现了优异的温度/频率稳定性样本。这项工作提供了一种可行的方式来设计在低场运行的高储能性能无铅陶瓷。

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  • 来源
    《Journal of materials science》 |2020年第19期|16928-16937|共10页
  • 作者

    Tianyu Li; Pengfei Chen; Renjun Si; Feng Li; Youmin Guo; Chunchang Wang;

  • 作者单位

    Laboratory of Dielectric Functional Materials School of Physics & Materials Science Anhui University Hefei 230601 China;

    Laboratory of Dielectric Functional Materials School of Physics & Materials Science Anhui University Hefei 230601 China;

    Laboratory of Dielectric Functional Materials School of Physics & Materials Science Anhui University Hefei 230601 China;

    Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China;

    Laboratory of Dielectric Functional Materials School of Physics & Materials Science Anhui University Hefei 230601 China School of Physics and Materials Science Energy Materials and Devices Key Lab of Anhui Province for Photoelectric Conversion Anhui University Hefei 230601 China;

    Laboratory of Dielectric Functional Materials School of Physics & Materials Science Anhui University Hefei 230601 China School of Physics and Materials Science Energy Materials and Devices Key Lab of Anhui Province for Photoelectric Conversion Anhui University Hefei 230601 China State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Beijing 100084 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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