Effects of B2O3 Addition on the Dielectric and Ferroelectric Properties of Ba0.7Sr0.3TiO3 Ceramics |
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| Authors: | Sung Min Rhim Seokmin Hong Heungjin Bak Ok Kyung Kim |
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| Affiliation: | Department of Physics, Hanyang University, Ansan, Kyonggi-do, 425-791, Korea |
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| Abstract: | The effects of B2O3 addition on the sintering behavior and the dielectric and ferroelectric properties of Ba0.7Sr0.3TiO3 (BST) ceramics were investigated. The dielectric and ferroelectric properties of a BST sample with 0.5 wt% B2O3 sintered at <1150°C were as good as those of undoped BST sintered at 1350°C, and the dielectric loss was better. When >1.0 wt% B2O3 was added to BST, the overdoped B2O3 did not form a liquid phase or volatilize; it remained in the samples and formed a secondary phase that lowered the sintering behavior and the dielectric and ferroelectric properties of the BST. |
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| Keywords: | boron oxide titanates dielectric properties |
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