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Enhanced energy storage properties of barium titanate ceramics made from surface modified particles

机译：表面改性颗粒制成的钛酸钡陶瓷的增强的储能性能

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摘要

Surface modification of barium titanate particles has been carried out using a wet chemical method. The microstractural and dielectric properties of the ceramics made from surface modified particles were extensively investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and dielectric properties measurements. The breakdown strength increased by 69% and 117% for the A1_2O_3 and B_2O_3-SiO_2 modified ceramics, respectively. An energy storage density of up to 3.2 J/cm~3 has been obtained. The suppression of grain boundary electron transport and reduction in pore defects lead to the energy storage properties enhancement of the modified ceramics. These results indicated that surface modification of ceramic particles is a promising approach to obtain dielectric ceramics with high energy storage density.
机译：钛酸钡颗粒的表面改性已经使用湿化学方法进行。通过X射线衍射，扫描电子显微镜，透射电子显微镜和介电性能测量，广泛研究了由表面改性颗粒制成的陶瓷的微观结构和介电性能。 A1_2O_3和B_2O_3-SiO_2改性陶瓷的击穿强度分别提高了69％和117％。已经获得了高达3.2 J / cm〜3的能量存储密度。晶界电子传输的抑制和孔缺陷的减少导致改性陶瓷的储能性能增强。这些结果表明，陶瓷颗粒的表面改性是获得具有高储能密度的介电陶瓷的有前途的方法。

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  • 来源
    《Journal of advanced dielectrics》 |2013年第3期|1350023.1-1350023.7|共7页
  • 作者

    Zhifu Liu; Zhiqiang Zhang; Faqiang Zhang; Yongxiang Li;

  • 作者单位

    CAS Key Lab. of Inorganic Functional Materials and Devices Shanghai Institute of Ceramics, Chinese Academy of Sciences No. 1295 Dingxi Road, Shanghai 200050, P. R. China;

    CAS Key Lab. of Inorganic Functional Materials and Devices Shanghai Institute of Ceramics, Chinese Academy of Sciences No. 1295 Dingxi Road, Shanghai 200050, P. R. China;

    CAS Key Lab. of Inorganic Functional Materials and Devices Shanghai Institute of Ceramics, Chinese Academy of Sciences No. 1295 Dingxi Road, Shanghai 200050, P. R. China;

    CAS Key Lab. of Inorganic Functional Materials and Devices Shanghai Institute of Ceramics, Chinese Academy of Sciences No. 1295 Dingxi Road, Shanghai 200050, P. R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Barium titanate; energy storage; surface modification; breakdown strength;

    机译：钛酸钡;储能;表面改性;击穿强度;

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