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Major effects on microstructure and electrical properties of ZnO-based linear resistance ceramics with MgO changes

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Abstract

The ZnO-based linear resistance ceramics were fabricated from ZnO–Al2O3–MgO–TiO2 at 1,340 °C. The effect of the different doping amounts of MgO on the microstructure and electrical properties were investigated in detail. The optimal sample with the MgO concentration of 7 wt% possesses an energy density of 812 J/cm3 and a resistance temperature coefficient reaches 0.4 × 10−3/°C, which are improved by 8 and 103 %, respectively. Spontaneously, the nonlinear coefficient maintains about 1.15 and the resistivity reaches to 778 Ω cm, increased by 33 %.

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Acknowledgments

This work was supported by the Key Project of Chinese Ministry of Education (No. 210218), Scientific and technological project of Wenzhou (H20100079, H20100087), 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 and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an, 710021, Shaanxi, China

    Jianfeng Zhu, Jingjing Wang, Yong Zhou & Fen Wang

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  1. Jianfeng Zhu
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  2. Jingjing Wang
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  3. Yong Zhou
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  4. Fen Wang
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Correspondence to Jingjing Wang.

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Zhu, J., Wang, J., Zhou, Y. et al. Major effects on microstructure and electrical properties of ZnO-based linear resistance ceramics with MgO changes. J Mater Sci: Mater Electron 25, 2273–2278 (2014). https://doi.org/10.1007/s10854-014-1871-9

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  • DOI: https://doi.org/10.1007/s10854-014-1871-9

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