Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14358
Title: Positive temperature coefficient of resistivity effect in niobium-doped barium titanate ceramics obtained at low sintering temperature
Authors: Wang, X
Chan, HLW 
Choy, CL 
Keywords: BaTiO3
Electrical properties
Grain boundary
Sintering
Thermistor
Issue Date: 2004
Source: Journal of the European Ceramic Society, 2004, v. 24, no. 6, p. 1227-1231 How to cite?
Journal: Journal of the European Ceramic Society 
Abstract: A positive temperature coefficient of resistivity (PTCR) effect was observed for low temperature sintered Nb-doped BaTiO3 ceramics using YB6 as a sintering aid. A semiconducting BaTiO3 with good PTCR property was obtained at a low sintering temperature of 1150 °C because of the addition of YB6. Addition of 0.2 mol% Nb2O5 and 1 mol% of YB6 led to a low room-temperature resistivity and a resistivity jump of about 104. Room-temperature resistivity of the ceramics was controlled by the grain boundary resistivity which was related to the added amount of YB6 and the sintering temperature. YB6 only worked as a sintering aid to enhance the densification of semiconducting BaTiO3 ceramics at low sintering temperature.
URI: http://hdl.handle.net/10397/14358
ISSN: 0955-2219
DOI: 10.1016/S0955-2219(03)00379-0
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

13
Last Week
0
Last month
0
Citations as of Aug 10, 2017

WEB OF SCIENCETM
Citations

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

Page view(s)

24
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.