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Effects of La2O3 Doping on Electrical Properties of Zn-Pr Based Varistor Ceramics
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Jianke LIU1, 3, Yaning XU2, 3, Wenbin CAO1, 3, Ruiting ZHANG2, 3, Fan SONG1, 3, Xin XIE2, 3, Yinan QIAO2, 3
Journal of the Chinese Ceramic Society | 2020, 48(3) : 337 - 342
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Journal of the Chinese Ceramic Society | 2020, 48(3): 337-342
Effects of La2O3 Doping on Electrical Properties of Zn-Pr Based Varistor Ceramics
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Jianke LIU1, 3, Yaning XU2, 3, Wenbin CAO1, 3, Ruiting ZHANG2, 3, Fan SONG1, 3, Xin XIE2, 3, Yinan QIAO2, 3
Affiliations
  • 1.School of Arts and Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
  • 2.School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
  • 3.Research Center for Semiconductor Materials and Devices, Shaanxi University of Science and Technology, Xi'an 710021, China

    • LIU Jianke (1966-), male Professor. E-mail:

About Author:

LIU Jianke (1966-), male Professor. E-mail:

Published: 2020-03-20 doi: 10.14062/j.issn.0454-5648.20190396
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The ZnO-Pr6O11-Co2O3-Cr2O3-La2O3 varistors were prepared by solid state sintering method. The effect of La2O3 doping on the microstructure, varistor property, and dielectric characteristics of the ZnO varistor ceramics were studied in detail. The results show that the ZnO varistor has the best overall performance with La2O3 content of 1.5% (in mole fraction), the grain size is the smallest and uniform, the breakdown voltage E1Ma is the highest (752 V/mm), the nonlinear coefficient is large (12), the grain boundary capacitance is the largest (276 pF), and the loss tangent is relatively low.

lanthanum oxide doping  /  zinc oxide varistor  /  nonlinear coefficient  /  impedance characteristic  /  dielectric properties
刘建科, 徐亚宁, 曹文斌, 张瑞婷, 宋帆, 谢鑫, 乔毅楠. La2O3掺杂对Zn-Pr基压敏陶瓷电学特性的影响. 硅酸盐学报, 2020 , 48 (3) : 337 -342 . DOI: 10.14062/j.issn.0454-5648.20190396
Jianke LIU, Yaning XU, Wenbin CAO, Ruiting ZHANG, Fan SONG, Xin XIE, Yinan QIAO. Effects of La2O3 Doping on Electrical Properties of Zn-Pr Based Varistor Ceramics[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (3) : 337 -342 . DOI: 10.14062/j.issn.0454-5648.20190396
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Year 2020 volume 48 Issue 3
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Article Info
doi: 10.14062/j.issn.0454-5648.20190396
  • Receive Date：2019-06-10
  • Online Date：2026-10-29
  • Published：2020-03-20
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History
  • Received：2019-06-10
  • Revised：2019-07-08
Funding
Affiliations
    1.School of Arts and Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
    2.School of Materials Science & Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
    3.Research Center for Semiconductor Materials and Devices, Shaanxi University of Science and Technology, Xi'an 710021, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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