Paper Title:
Microstructure and Electrical Properties of La2O3-Doped ZnO-Bi2O3 Based Varistor Ceramics
  Abstract

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 0.09-494μA. 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 0.29μA. The doping of La2O3 affects the form and decomposition of the pyrochlore.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
2007-2010
DOI
10.4028/www.scientific.net/AMR.79-82.2007
Citation
D. Xu, X. N. Cheng, M. S. Wang, L. Y. Shi, "Microstructure and Electrical Properties of La2O3-Doped ZnO-Bi2O3 Based Varistor Ceramics", Advanced Materials Research, Vols. 79-82, pp. 2007-2010, 2009
Online since
August 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ning Zhang Wang, Sha Sha, Yu Tian Ma
Abstract:MnCO3, CuO, NiO and Fe2O3 doped SrTiO3 multifunction ceramics were fabricated firstly. The microstructure and electrical properties were...
1603
Authors: Yun Xia Zhang, Jun Jie Hao, Jun Ting Qi
Building Materials
Abstract:In this paper, the effect of Nb2O5 on the microstructure and dielectric properties of BaTiO3-based ceramics...
1108
Authors: Rong Xia Huang, Yu Zhen Zhao, Yong Jie Zhao, Rong Zheng Liu, He Ping Zhou
Abstract:Lead-free K0.5Na0.5NbO3-xwt% (0.4ZnO-0.6B2O3) ceramics were synthesized by...
315
Authors: Ming Zhao, Meng Zhang, Yu Shi, Zhi Long Wang
Chapter 12: Functional Materials
Abstract:0~1.5mol% MnCO3 doped ZnO-Pr6O11-Co2O3-Cr2O3 varistor ceramics...
1135
Authors: Cheng Hua Zhang, Bin Jiang, Ke Zhang, Lei Jiao, Ren Hong Yu, Dong Xu
Abstract:Sc2O3-doped zinc oxide varistor ceramics were prepared by a solid reaction route. The microstructure and the electrical...
126