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Effects of Ba/Ti ratio on tetragonality, Curie temperature, and dielectric properties of solid-state-reacted BaTiO3 powder

Published online by Cambridge University Press:  03 October 2012

Che-Yuan Chang
Affiliation:
Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
Ru-Li Wang
Affiliation:
Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
Chi-Yuen Huang*
Affiliation:
Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
*
a)Address all correspondence to this author. e-mail: cyhuang@mail.ncku.edu.tw
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Abstract

The effects of the barium/titanium (Ba/Ti) ratio on the crystalline phase, Curie temperature, and dielectric properties of solid-state-reacted BaTiO3 powder were investigated. The experimental results showed that tetragonality decreased and the Curie temperature shifted to lower temperature when the Ba/Ti ratio strayed from 1.0. The BaTiO3 powder had the maximum dielectric constant when the Ba/Ti approaching 1.0.

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Copyright © Materials Research Society 2012

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Effects of Ba/Ti ratio on tetragonality, Curie temperature, and dielectric properties of solid-state-reacted BaTiO3 powder
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