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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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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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Acknowledgment

This work was supported by the National Science Council, under Grant No. NSC100-2221-E-006-134-MY3.

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  1. Department of Resources Engineering, National Cheng Rung University, Tainan, 70101, Taiwan

    Che-Yuan Chang, Ru-Li Wang & Chi-Yuen Huang

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  1. Che-Yuan Chang
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  2. Ru-Li Wang
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Correspondence to Chi-Yuen Huang.

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Chang, CY., Wang, RL. & Huang, CY. Effects of Ba/Ti ratio on tetragonality, Curie temperature, and dielectric properties of solid-state-reacted BaTiO3 powder. Journal of Materials Research 27, 2937–2942 (2012). https://doi.org/10.1557/jmr.2012.318

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