Paper Title:
Effect of Li+ and Mn2+ Doping on the Electrical Properties of SrTiO3-Based Varistor Ceramics
  Abstract

Effect of Li+ and Mn2+ doping on the electrical properties of SrTiO3-based varistor ceramics was investigated. The results showed that the varistor ceramics cannot possess ideal electrical properties when only Li+ or Mn2+ was doped. However, when Li+ and Mn2+ were properly doped together, the samples acquired excellent electrical properties: V1mA = (5.7 ~ 11.7)V/mm; α = 6.8 ~ 11.0; er = (2.4 ~ 4.4) × 105; tan d = (7.1 ~ 10.4)%. When the contents of Li2CO3 and MnCO3 were 1.00 mol% and 0.05 mol% respectively, the nonlinear coefficient α reached the largest value of 11.0. Compared with only Mn2+ doping, the addition of Li+ increases the α value significantly.

  Info
Periodical
Key Engineering Materials (Volumes 280-283)
Edited by
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
Pages
361-364
DOI
10.4028/www.scientific.net/KEM.280-283.361
Citation
Y. X. Xu, Z. T. Zhang, X. Y. Zhang, Z. L. Tang, S. H. Luo, L. M. Dong, "Effect of Li+ and Mn2+ Doping on the Electrical Properties of SrTiO3-Based Varistor Ceramics", Key Engineering Materials, Vols. 280-283, pp. 361-364, 2005
Online since
February 2007
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: Long Tu Li, Tian Wang, Xiao Hui Wang, Jing Chang Zhao, Xian Li
Abstract:Dielectric characteristics of strontium titanate based ceramics doped with samarium were investigated within temperature range from –60oC to...
158
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: 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