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首页> 外文期刊>Journal of the American Ceramic Society >Very Low Loss Tangent and High Dielectric Permittivity in Pure-CaCu_3Ti_4O_(12) Ceramics Prepared by a Modified Sol-Gel Process
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Very Low Loss Tangent and High Dielectric Permittivity in Pure-CaCu_3Ti_4O_(12) Ceramics Prepared by a Modified Sol-Gel Process

机译：改性溶胶-凝胶法制备的纯CaCu_3Ti_4O_（12）陶瓷中的损耗角正切和高介电常数

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摘要

We present a simple strategy to achieve excellent dielectric and nonlinear current-voltage properties for pure-CaCu_3Ti_4O_(12) ceramics prepared by a modified sol-gel method with different calcining conditions. At 1 kHz and room temperature, the best CCTO ceramic can exhibit a high dielectric constant (ε') of 9516 with a very low dielectric loss, tan δ -0.020. The minimum value of tan δ is 0.018 at 2.5 kHz with ε' -9433. High breakdown field of 4032 V/cm and nonlinear coefficient of 7.05 were obtained.
机译：我们提出了一种简单的策略，以通过改进的溶胶-凝胶法在不同的煅烧条件下制备的纯CaCu_3Ti_4O_（12）陶瓷实现优异的介电和非线性电流-电压特性。在1 kHz和室温下，最好的CCTO陶瓷可以表现出9516的高介电常数（ε'），介电损耗非常低，tanδ-0.020。 tanδ的最小值在2.5 kHz时为0.018，ε'-9433。获得了4032 V / cm的高击穿场和7.05的非线性系数。

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  • 来源
    《Journal of the American Ceramic Society》 |2012年第5期|p.1497-1500|共4页
  • 作者

    Somsack Vangchangyia; Ekaphan Swatsitang; Prasit Thongbai; Supree Pinitsoontorn; Teerapon Yamwong; Santi Maensiri; Vittaya Amornkitbamrung; Prinya Chindaprasirt;

  • 作者单位

    Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;

    Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand,Integrated Nanotechnology Research Center (INRC), Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;

    Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand,Integrated Nanotechnology Research Center (INRC), Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;

    Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand,Integrated Nanotechnology Research Center (INRC), Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;

    National Metal and Materials Technology Center (MTEC), Thailand Science Park, Pathumthani 12120, Thailand;

    School of Physics, Institute of Science, Suranaree University, Nakhon Ratchasima 30000, Thailand;

    Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand,Integrated Nanotechnology Research Center (INRC), Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;

    Department of Civil Engineering, Sustainable Infrastructure Research and Development Center, Khon Kaen University, Khon Kaen 40002, Thailand;

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