Microstructure and Electrical Properties of La2O3-doped ZnO-Bi2O3 based Varistor Ceramics

被引：27
|
作者：
Xu, Dong [1 ]
Cheng, Xiaonong [1 ]
Wang, Mingsong [1 ]
Shi, Liyi [2 ]
机构：
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[2] Shanghai Univ, Res Ctr Nano Sci & Technol, Shanghai 200041, Peoples R China
来源：
MULTI-FUNCTIONAL MATERIALS AND STRUCTURES II, PTS 1 AND 2 | 2009年 / 79-82卷
关键词：
varistors; zinc oxide; rare earth; electrical properties; microstructure; ZNO VARISTORS; VOLTAGE;
D O I：
10.4028/www.scientific.net/AMR.79-82.2007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
La2O3-doped ZnO-Bi2O3-based varistor ceramics were obtained by a solid reaction route, and the microstructure and electrical properties of the varistor ceramics were studied in this paper. The results showed with addition of 0-1.00mol% La2O3, La2O3-doped ZnO-based varistor ceramics were prepared in this paper with the voltage gradient of 77-503V/mm, the nonlinear coefficient of 2.4-36.8, and the leakage current of 0.09-494 mu A. The results also showed with addition of 0.08mol% La2O3, La2O3-doped ZnO-based varistor ceramics exhibit comparatively ideal comprehensive electrical properties. Such as the threshold voltage was 320V/mm, the nonlinear coefficient was 36.8 and the leakage current was 0.29 mu A. The doping of La2O3 affects the form and decomposition of the pyrochlore.
引用
收藏
页码：2007 / +
页数：2
相关论文
共 50 条
  • [1] Microstructure and electrical properties of Dy2O3-doped ZnO-Bi2O3 based varistor ceramics
    Chen, Guo-hua
    Li, Ji-le
    Yang, Yun
    Yuan, Chang-lai
    Zhou, Chang-rong
    MATERIALS RESEARCH BULLETIN, 2014, 50 : 141 - 147
  • [2] Effects of doping Y2O3 on the microstructure and electrical properties of ZnO-Bi2O3−based varistor ceramics
    Jiaqi Li
    Ke Tang
    Shuaijun Yang
    Dachuan Zhu
    Journal of Electroceramics, 2021, 46 : 131 - 140
  • [3] Effects of the Er2O3 doping on the microstructure and electrical properties of ZnO-Bi2O3 based varistor ceramics
    Zhang, Lei
    Liu, Wenfeng
    Gao, Jinghan
    Kong, Fanyi
    Li, Yongjian
    Li, Shengtao
    CERAMICS INTERNATIONAL, 2021, 47 (22) : 32349 - 32356
  • [4] The Effect of Sintering Temperature on the Microstructure and Electrical Properties of ZnO-Bi2O3 Varistor Ceramics
    Tian, Jingjing
    Wu, Yelin
    Tian, Heng
    Xu, Yonghao
    Lu, Pengzhen
    Zhao, Jiayang
    Zhang, Bo
    JOURNAL OF ELECTRONIC MATERIALS, 2024, 53 (07) : 3994 - 4000
  • [5] ELECTRICAL PROPERTIES OF ZNO-BI2O3 CERAMICS
    MORRIS, WG
    AMERICAN CERAMIC SOCIETY BULLETIN, 1972, 51 (04): : 359 - &
  • [6] Microstructure and electrical properties of Lu2O3-doped ZnO-Bi2O3-based varistor ceramics
    徐东
    史小锋
    程晓农
    杨娟
    樊曰娥
    袁宏明
    施利毅
    TransactionsofNonferrousMetalsSocietyofChina, 2010, 20 (12) : 2303 - 2308
  • [7] Microstructure and electrical properties of Sm2O3 doped Bi2O3-based ZnO varistor ceramics
    Ashraf, M. A.
    Bhuiyan, A. H.
    Hakim, M. A.
    Hossain, M. T.
    MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2011, 176 (11): : 855 - 860
  • [8] Microstructure and electrical properties of Lu2O3-doped ZnO-Bi2O3-based varistor ceramics
    Xu Dong
    Shi Xiao-feng
    Cheng Xiao-nong
    Yang Juan
    Fan Yue-e
    Yuan Hong-ming
    Shi Li-yi
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (12) : 2303 - 2308
  • [9] Microstructure and electrical properties of Sc2O3-doped ZnO-Bi2O3-based varistor ceramics
    Xu, Dong
    Cheng, Xiaonong
    Zhao, Guoping
    Yang, Juan
    Shi, Liyi
    CERAMICS INTERNATIONAL, 2011, 37 (03) : 701 - 706
  • [10] Microstructure and electrical properties of Ho2O3 doped Bi2O3-based ZnO varistor ceramics
    Ashraf, M. A.
    Bhuiyan, A. H.
    Hakim, M. A.
    Hossain, M. T.
    PHYSICA B-CONDENSED MATTER, 2010, 405 (17) : 3770 - 3774
12345