Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29544
Title: Ferroelectric and piezoelectric properties of Na1-xBa xNb1-xTixO3 ceramics
Authors: Zeng, JT
Kwok, KW 
Chan, HLW 
Issue Date: 2006
Publisher: Wiley-Blackwell
Source: Journal of the American Ceramic Society, 2006, v. 89, no. 9, p. 2828-2832 How to cite?
Journal: Journal of the American Ceramic Society 
Abstract: Piezoelectric ceramics Na1-xBaxNb 1-xTixO3 with low BaTiO3 concentrations x have been prepared by the solid-state reaction method, and their ferroelectric and piezoelectric properties have been studied. The ceramics are classic ferroelectrics when x≤0.10, and the ferroelectric-paraelectric phase transition becomes diffusive when x ≥ 0.15. A low doping level of BaTiO3 changes the NaNbO3 ceramics from antiferroelectric to ferroelectric. With the increase in BaTiO3 doping level, the Curie temperature of ceramics decreases linearly and the remnant polarization and coercive field also decrease, while their dielectric constant increases. Na 0.9Ba0.1Nb0.9Ti0.1O3 ceramics show the largest piezoelectric constant d33 (147 pC/N) and good sinter-ability, suggesting that it is a good candidate for lead-free piezoelectric ceramics.
URI: http://hdl.handle.net/10397/29544
ISSN: 0002-7820
EISSN: 1551-2916
DOI: 10.1111/j.1551-2916.2006.01172.x
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