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Phase Transitions
A Multinational Journal
Volume 83, 2010 - Issue 1
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Original Articles

Influence of B2O3 on electrical properties and phase transition of lead-free Ba(Ti0.9Sn0.1)O3 ceramics

N. Tawichai Faculty of Science, Department of Physics, Chiang Mai University, Chiang Mai 50200, Thailand
,
U. Intatha School of Science, Mae Fah Luang University, Chiang Rai 57000, Thailand
,
S. Eitssayeam Faculty of Science, Department of Physics, Chiang Mai University, Chiang Mai 50200, Thailand
,
K. Pengpat Faculty of Science, Department of Physics, Chiang Mai University, Chiang Mai 50200, Thailand
,
G. Rujijanagul Faculty of Science, Department of Physics, Chiang Mai University, Chiang Mai 50200, ThailandCorrespondence[email protected]
&
T. Tunkasiri Faculty of Science, Department of Physics, Chiang Mai University, Chiang Mai 50200, Thailand
Pages 55-63 | Received 05 Nov 2009, Accepted 11 Dec 2009, Published online: 27 Jan 2010
 
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Abstract

The phase transition and electrical properties of Ba(Ti0.9Sn0.1)O3 ceramics with B2O3 added were investigated to explore the effect of B2O3 addition on enhanced densification and dielectric constant of these ceramics. With increasing B2O3 content, a linear reduction of ferroelectric to paraelectric transition temperature was observed. In addition, higher B2O3 concentrations enhanced a ferroelectric relaxor behavior in the ceramics. Changes in this behavior were related to densification, second-phase formation and compositional variation of the ceramics.

Acknowledgements

The authors would like to thank the Commission on Higher Education (CHE) for supporting by grant fund under the program Strategic Scholarships for Frontier Research Network for the Join PhD Program Thai doctoral degree for this research. This work was also supported by the Faculty of Science and Graduate School Chiang Mai University, The Thailand Research Fund (TRF), National Nanotechnology Center (NANOTEC), NSTDA, Thailand.

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