Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/26092
Title: Ferroelectric domain morphology evolution and octahedral tilting in lead-free (Bi1/2Na1/2)TiO3-(Bi 1/2K1/2)TiO3-(Bi1/2Li 1/2)TiO3-BaTiO3 ceramics at different temperatures
Authors: Tai, CW
Choy, SH
Chan, HLW 
Issue Date: 2008
Publisher: Wiley-Blackwell
Source: Journal of the American Ceramic Society, 2008, v. 91, no. 10, p. 3335-3341 How to cite?
Journal: Journal of the American Ceramic Society 
Abstract: Observations by in situ transmission electron microscopy (TEM) reveal the changes in domains morphology in 0.885(Bi1/2Na1/2)TiO 3-0.05(Bi1/2K1/2)TiO3-0.015(Bi 1/2Li1/2)TiO3-0.05BaTiO3 ceramics. Evolution of the macroscopic ferroelectric domains has been observed at 25°-180°C. The ferroelectric domains and their walls reduce progressively with increasing temperature. In the selected-area electron diffraction patterns, the crystallographic evidence of antiferroelectric domain is not found over the temperature range, which provides the evidence that the ferroelectric-antiferroelectric transition does not occur in the ceramic. The temperature-dependent forbidden 3/2 1/2 0 and superstructure 3/2 1/2 1/2 reflections indicate the presence of an in-phase and anti-phase octahedral tilting in the ceramic, respectively. Dark-field TEM images show that the size of the octahedral tilted domains is smaller than 30 nm across and that these domains are uniformly distributed in the grains. The influence of the localized octahedral titling on the stability of ferroelectric domains and the temperature-dependent properties is discussed in this paper.
URI: http://hdl.handle.net/10397/26092
ISSN: 0002-7820
EISSN: 1551-2916
DOI: 10.1111/j.1551-2916.2008.02592.x
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

77
Last Week
0
Last month
0
Citations as of Aug 13, 2017

WEB OF SCIENCETM
Citations

74
Last Week
0
Last month
0
Citations as of Aug 12, 2017

Page view(s)

42
Last Week
3
Last month
Checked on Aug 13, 2017

Google ScholarTM

Check

Altmetric



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