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首页> 外文期刊>Journal of Materials Research >Thermally stable dielectric properties of 0.5Na_(0.5)Bi_(0.5)TiO_3-0.4SrTiO_3-0.1BiFeO_3 ceramics at high temperature
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Thermally stable dielectric properties of 0.5Na_(0.5)Bi_(0.5)TiO_3-0.4SrTiO_3-0.1BiFeO_3 ceramics at high temperature

机译：在高温下，热稳定的介电性能为0.5NA_（0.5）Bi_（0.5）Bi_（0.5）TiO_3-0.4SRTIO_3-0.1BIFEO_3陶瓷

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摘要

Na_(0.5)Bi_(0.5)TiO3-based ceramics have been paid great attention as Pb-free piezoelectric and electrical energy storage materials. Here, adding 10 mol% BiFeO_3 in Na_(0.5)Bi_(0.5)TiO_3-SrTiO_3 binary system, 0.5Na_(0.5)Bi_(0.5)TiO_3-0.4SrTiO_3-0.1 BiFeO_3 ceramics were prepared by a conventional solid-state reaction method. Dielectric measurements reflected a near-plateau dielectric response at high temperature, e.g., the mid-dielectric permittivity of 2052 with the variation within ±10% from 57 to 371 °C and within ±15% from 54 to 371 °C for the ceramic sintered at 1100 °C. At a moderate electric field of 70 kV/cm, a capacitor made by the ceramic has an electrical energy storage density of 0.95 J/cm~3, while the polarization has yet saturated at the moderate electric field. These results suggest that 0.5Na_(0.5)Bi_(0.5)TiO_3-0.4SrTiO_3-0.1BiFeO_3 ceramic is a promising novel material with thermally stable dielectric permittivity and high electrical energy storage property for applications in high-temperature electronics.
机译：Na_（0.5）Bi_（0.5）基于TiO3的陶瓷被视为无铅压电和电能存储材料的重视。在这里，在Na_（0.5）Bi_（0.5）TiO_3-SRTIO_3二进制系统中加入10mol％BIFEO_3，0.5NA_（0.5）BI_（0.5）TiO_3-0.4SRTIO_3-0.1通过常规固态反应方法制备BIFEO_3陶瓷。电介质测量在高温下反映了近平台介电响应，例如，2052的中间介电常数，在57至371℃的±10％内的变化，对于陶瓷烧结的54至371℃，±15％在±15％内。在1100°C时。在70kV / cm的适度电场处，由陶瓷制成的电容器具有0.95J / cm〜3的电能存储密度，而极化在中等电场仍然饱和。这些结果表明，0.5NA_（0.5）Bi_（0.5）TiO_3-0.4SRTIO_3-0.1BifeO_3陶瓷是一种具有热稳定介电介电常数和高电能存储性的有前途的新型材料，用于高温电子。

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  • 来源
    《Journal of Materials Research》 |2021年第5期|1153-1160|共8页
  • 作者

    Xi Wu; Hongbo Liu; Jianguo Chen;

  • 作者单位

    School of Materials Engineering Shanghai University of Engineering Science Shanghai 201620 China;

    School of Materials Engineering Shanghai University of Engineering Science Shanghai 201620 China;

    School of Materials Science and Engineering Shanghai University Shanghai 200444 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);
  • 原文格式 PDF
  • 正文语种 eng
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