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Effect of TiO2 addition on the microstructure and electrical properties of ZnO-based linear resistance ceramics

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Abstract

ZnO-based linear resistance ceramics doped with TiO2 were fabricated by the conventional ceramic method. The effect of TiO2 on the microstructure and electrical properties of the ceramics was investigated in detail. The results show that the electrical properties, such as resistivity, nonlinear coefficient, resistance temperature coefficient and energy density, have been obviously influenced by TiO2 doping. The optimal sample with the TiO2 concentration of 7 wt% possesses a resistivity of 695 Ω · cm and an energy density of 780 J/cm3, which are improved by 171.5 and 68.8%, respectively. Spontaneously, the nonlinear coefficient of voltage decreases to 1.2 and the resistance temperature coefficient reaches −2.92 × 10−3/°C, decreased by 20 and 39.2%, respectively.

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Acknowledgments

This work was supported by the Key Project of Chinese Ministry of Education (No210218), Scientific and technological project of Wenzhou (H20100079, H20100087), Special project of Shaanxi provincial education department (11JK0810) and the Graduate Innovation Fund of Shaanxi University of Science and Technology.

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Authors and Affiliations

  1. Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, 710021, Xi’an, Shaanxi, China

    Jian Feng Zhu, Yong Zhou, Hai Bo Yang & Fen Wang

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  1. Jian Feng Zhu
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  2. Yong Zhou
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  3. Hai Bo Yang
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  4. Fen Wang
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Correspondence to Yong Zhou.

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Zhu, J.F., Zhou, Y., Yang, H.B. et al. Effect of TiO2 addition on the microstructure and electrical properties of ZnO-based linear resistance ceramics. J Mater Sci: Mater Electron 23, 445–450 (2012). https://doi.org/10.1007/s10854-011-0579-3

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  • DOI: https://doi.org/10.1007/s10854-011-0579-3

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