Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28619
Title: A strong correlation of crystal structure and Curie point of barium titanate ceramics with Ba/Ti ratio of precursor composition
Authors: Chen, WP
Shen, ZJ
Guo, SS
Zhu, K
Qi, JQ
Wang, Y 
Chan, HLW 
Keywords: Barium titanate
Curie point
Perovskite
Stoichiometry
Issue Date: 2008
Source: Physica B : Condensed matter, 2008, v. 403, no. 4, p. 660-663 How to cite?
Journal: Physica B: Condensed Matter 
Abstract: A series of barium titanate powders were synthesized from precursors BaCO3 and TiO2 with Ba/Ti ratio ranged from 0.96 to 1.04. For the ceramics sintered at 1300 °C for 2 h, with increasing Ba/Ti ratio from 0.96 to 1.04, the tetragonal distortion of perovskite barium titanate phase was decreased continuously and the Curie point was decreased monotonously from 122.9 to 98.0 °C. At the same time, the content of secondary phases was very low. This correlation of crystal structure and Curie point of barium titanate ceramics was explained by composition variation of the perovskite phase itself rather than by the influence from secondary phases. Due to very controversial results reported by different groups, it was proposed that BaTiO3 has some different states with different solubilities for BaO and TiO2. Further investigations should be conducted on the preparation and the properties of BaTiO3 with much BaO or TiO2 dissolved.
URI: http://hdl.handle.net/10397/28619
ISSN: 0921-4526
DOI: 10.1016/j.physb.2007.09.070
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

16
Last Week
0
Last month
0
Citations as of Sep 11, 2017

WEB OF SCIENCETM
Citations

16
Last Week
0
Last month
Citations as of Sep 13, 2017

Page view(s)

40
Last Week
3
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



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