Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25753
Title: Degradation of SrTiO3-based ceramic varistors induced by water and ac voltages
Authors: Sun, JQ
Chen, WP
Xiang, W
You, WC
Zhuang, Y
Chan, HLW 
Keywords: Degradation
E. Varistor
Electrolysis of water
Strontium titanate
Issue Date: 2007
Publisher: Pergamon Press
Source: Ceramics international, 2007, v. 33, no. 6, p. 1137-1140 How to cite?
Journal: Ceramics international 
Abstract: A comparison experiment was conducted in which some SrTiO3-based ceramic varistors were simply immersed in a 0.01 M NaOH solution for some periods of time while other varistors were immersed in the solution with a 50 Hz ac voltage applied between the electrodes of the varistors and a counter electrode in the solution. Though the simple immersion showed no noticeable influence on the varistors, those varistors treated with the application of the ac voltage were greatly degraded in their properties. It was proposed that the degradation resulted from the collaborated reactions of atomic hydrogen and oxygen generated in the ac voltage-induced electrolysis of water with the insulating potential barriers of the varistors. It is important to prevent water-induced degradation in SrTiO3-based ceramic varistors operating under ac voltages.
URI: http://hdl.handle.net/10397/25753
ISSN: 0272-8842
EISSN: 1873-3956
DOI: 10.1016/j.ceramint.2006.03.005
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

3
Last Week
0
Last month
0
Citations as of Jul 21, 2017

WEB OF SCIENCETM
Citations

3
Last Week
0
Last month
0
Citations as of Aug 13, 2017

Page view(s)

39
Last Week
1
Last month
Checked on Aug 14, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.