Paper Title:
The Effects of Cu Dopant on the Microstructure and Non-Ohmic Electrical Properties of ZnO Varistors
  Abstract

The doping effects of Cu on the microstructure and non-ohmic electrical properties of ZnO varistors were studied. Addition of Cu2O can enhance the ZnO grain growth during sintering. The SEM and EDS results revealed that the added Cu mainly distributed in the grain boundary and spinel phases of ZnO varistors. The Cu2O addition increased the both of grain and grain boundary resistances. However it decreased the non-ohmic electrical characteristics of ZnO varistors, which is a good agreement with similar findings on Ag2O additions, but contrasts to the reports of good non-ohmic electrical property which found on binary Cu doped ZnO varistors.

  Info
Periodical
Advanced Materials Research (Volumes 343-344)
Chapter
Session 1: Materials for Environmental Protection and Energy Application
Edited by
David Wang
Pages
160-165
DOI
10.4028/www.scientific.net/AMR.343-344.160
Citation
J. W. Fan, X. P. Li, Z. G. Zhang, Z. Q. Jiao, X. Y. Liu, W. J. Zhang, P. Poosimma, R. Freer, "The Effects of Cu Dopant on the Microstructure and Non-Ohmic Electrical Properties of ZnO Varistors", Advanced Materials Research, Vols. 343-344, pp. 160-165, 2012
Online since
September 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: Francesco La Via, Fabrizio Roccaforte, Vito Raineri, Marco Mauceri, Alfonso Ruggiero, Paolo Musumeci, Lucia Calcagno
861
Authors: Surina Othman, F.K. Yam, Abu Hassan Haslan, Hassan Zainuriah
Abstract:In this study, we investigated the contact characteristics of bi-layer thin films, Ag (200nm)/Ti (100nm) on Si-doped n-type Al0.27Ga0.73N...
281
Authors: Go Hiramatsu, Yoshihiro Hirata, Soichiro Sameshima, Naoki Matsunaga
Abstract:Gd-doped ceria electrolyte (Ce0.8Gd0.2O1.9, GDC, 700 μm thick), 30 vol% Ni-GDC cermet anode and perovskite cathode La0.6Sr0.4CoO3 (LSC) or...
985
Authors: Yu Cao, S. Alfonso Pérez-García, Lars Nyborg
Abstract:This study deals with the interfacial reactions and electrical properties of Ta/4H-SiC contacts. Tantalum thin films (~100 nm) were...
713
Authors: Lilyana Kolaklieva, Roumen Kakanakov, Maya Marinova, Efstathios K. Polychroniadis
Abstract:The dependence of the structure and composition of nanolayered Au/Ti/Al ohmic contacts to p-type 4H-SiC on the initial Ti:Al ratio has been...
55