Influence of tetragonality on crystal orientation induced by a strong magnetic field and on the piezoelectric properties of the (Bi0.5,Na0.5)1−xBaxTiO3 ceramic system
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- TANAKA Satoshi
- Department of Materials Science and Technology, Nagaoka University of Technology
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- SANO Keisuke
- Department of Materials Science and Technology, Nagaoka University of Technology
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- HARADA Tomohiro
- R & D Center, Taiyo Yuden Co. Ltd
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- SHIMIZU Hiroyuki
- R & D Center, Taiyo Yuden Co. Ltd
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- DOSHIDA Yutaka
- Division of Electrical and Electronic Engineering, Department of Innovative Engineering, Ashikaga University
書誌事項
- タイトル別名
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- Influence of tetragonality on crystal orientation induced by a strong magnetic field and on the piezoelectric properties of the (Bi<sub>0.5</sub>, Na<sub>0.5</sub>)<sub>1−</sub><i><sub>x</sub></i>Ba<i><sub>x</sub></i>TiO<sub>3</sub> ceramic system
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説明
Crystal-oriented (Bi0.5, Na0.5)1−xBaxTiO3 (BNBT), (x = 0.1–0.25) ceramics with a perovskite crystal structure were prepared by colloidal processing in a strong rotating magnetic field with the aim of improving their piezoelectric properties. The advantages of increasing the amount of Ba in these ceramics are twofold; specifically, this will lead to anisotropic crystal lattices and it will also increases the tetragonality. The crystal-oriented BNBT (x = 0.1–0.25) ceramics were prepared by using a rotating magnetic field to orient the a- and c-axes of the crystal in the powder compact. The degree of orientation also increased with the tetragonality. The phase transformation that occurred above Curie temperature during sintering redistributed the c-axis-oriented structure along both the a- and c-axes. Again, the c-axis orientation was enhanced by electrical field polarization. The piezoelectric d33 constant, which depended on the Ba content, achieved a maximum value of 122 pC N−1 at a Ba content of 15 mol %.
収録刊行物
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 126 (8), 655-661, 2018-08-01
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390564238003373184
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- NII論文ID
- 130007429197
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- ISSN
- 13486535
- 18820743
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
