Paper Title:
Effect of Er2O3 on the Microstructure and Electrical Properties of WO3 Capacitor-Varistor Ceramics
  Abstract

WO3-based capacitor-varistor ceramics doped with Er2O3 were prepared and the microstructures and nonlinear electrical properties were investigated. The results show that there exist second phase Er10W2O21 on the surface of WO3 grains. Doping Er2O3 in WO3 ceramic can inhibit the grain growth. A small quantity of Er2O3 can significantly improve nonlinear properties of the samples. The permittivity of doped samples was higher than that of the undoped, and the high permittivity makes Er2O3-doped WO3 ceramics be applicable as a kind of capacitor-varistor materials.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
2503-2506
DOI
10.4028/www.scientific.net/AMR.233-235.2503
Citation
Q. Qin, T. G. Wang, W. J. Zhang, "Effect of Er2O3 on the Microstructure and Electrical Properties of WO3 Capacitor-Varistor Ceramics", Advanced Materials Research, Vols. 233-235, pp. 2503-2506, 2011
Online since
May 2011
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: Shao Hua Luo, Zi Long Tang, Hong Yun Li, Zhong Tai Zhang, Xi Zhou Xiong
Abstract:The present work attempted to investigate the effect of Nb addition on the electrical properties of the (Ca,Si,Ce,Nb)-doped TiO2 ceramics....
297
Authors: Ji Gui Cheng, Ping Shi, Hong Hai Zhong, Bu Mei Wang
Abstract:Perovskite Sm1-xSrxCoO3 ceramics have been successfully prepared by gelcasting from oxides and carbonate powders, which were characterized...
444
Authors: Lan Yi Wang, Cheng Xiang Lu, Guo Yi Tang
Abstract:Two types of multilayer ZnO varistors are prepared by the chemically synthesized (CS) powder and the mixed oxide (MO) powder. The ceramic...
739
Authors: Sasiporn Prasertpalichat, Muangjai Unruan, J. Tungsritrakul, Rattikorn Yimnirun
Abstract:It is well known that acceptor and donor doping results in opposite ferroelectric aging effects; however, the aging effects in hybrid-doped...
233
Authors: Jun Hu, Wang Chen Long, Jin Liang He, Jun Liu, Feng Chao Luo
Abstract:The additive of Al(NO3)3 has been doped into ZnO varistors in order to reduce their residual voltages. However, the leakage currents of...
386