Microstructure control of barium titanate - Potassium niobate solid solution system ceramics by MPB engineering and their piezoelectric properties

Shigehito Shimizu; Nobuhiro Kumada; Kouichi Nakashima; Ichiro Fujii; Daisuke Tanaka; Masahito Furukawa; Yoshihiro Kuroiwa; Tohru Suzuki; Tetsuo Uchikoshi; Yoshio Sakka; Satoshi Wada

doi:10.4028/www.scientific.net/KEM.485.89

Microstructure control of barium titanate - Potassium niobate solid solution system ceramics by MPB engineering and their piezoelectric properties

Shigehito Shimizu^*, Nobuhiro Kumada, Kouichi Nakashima, Ichiro Fujii, Daisuke Tanaka, Masahito Furukawa, Yoshihiro Kuroiwa, Tohru Suzuki, Tetsuo Uchikoshi, Yoshio Sakka, Satoshi Wada

^*この研究の対応する著者

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

Effect of the microstructural homogeneity of 0.5 BaTiO₃ - 0.5 KNbO₃ (0.5BT-0.5KN) solid solution ceramics on the dielectric and piezoelectric properties was investigated. Microstructure of a sample prepared by a conventional sintering method was homogenous, and the room temperature crystal structure was assigned to cubic Pm3m symmetry and therefore the sample was paraelectric. On the other hand, microstructure of samples prepared by a two-step sintering method was inhomogeneous, that is, it was made of BT and KN grains. The large electric field piezoelectric constant d₃₃ ^* increased with increasing interface area.

本文言語	English
ホスト出版物のタイトル	Electroceramics in Japan XIV
出版社	Trans Tech Publications Ltd
ページ	89-92
ページ数	4
ISBN（印刷版）	9783037851821
DOI	https://doi.org/10.4028/www.scientific.net/KEM.485.89
出版ステータス	Published - 2011
外部発表	はい

出版物シリーズ

名前	Key Engineering Materials
巻	485
ISSN（印刷版）	1013-9826
ISSN（電子版）	1662-9795

ASJC Scopus subject areas

材料科学（全般）
材料力学
機械工学

文献へのアクセス

10.4028/www.scientific.net/KEM.485.89

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引用スタイル

Shimizu, S., Kumada, N., Nakashima, K., Fujii, I., Tanaka, D., Furukawa, M., Kuroiwa, Y., Suzuki, T., Uchikoshi, T., Sakka, Y., & Wada, S. (2011). Microstructure control of barium titanate - Potassium niobate solid solution system ceramics by MPB engineering and their piezoelectric properties. In Electroceramics in Japan XIV (pp. 89-92). (Key Engineering Materials; Vol. 485). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.485.89

Shimizu, S, Kumada, N, Nakashima, K, Fujii, I, Tanaka, D, Furukawa, M, Kuroiwa, Y, Suzuki, T, Uchikoshi, T, Sakka, Y & Wada, S 2011, Microstructure control of barium titanate - Potassium niobate solid solution system ceramics by MPB engineering and their piezoelectric properties. in Electroceramics in Japan XIV. Key Engineering Materials, vol. 485, Trans Tech Publications Ltd, pp. 89-92. https://doi.org/10.4028/www.scientific.net/KEM.485.89

Shimizu S, Kumada N, Nakashima K, Fujii I, Tanaka D, Furukawa M その他. Microstructure control of barium titanate - Potassium niobate solid solution system ceramics by MPB engineering and their piezoelectric properties. In Electroceramics in Japan XIV. Trans Tech Publications Ltd. 2011. p. 89-92. (Key Engineering Materials). doi: 10.4028/www.scientific.net/KEM.485.89

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abstract = "Effect of the microstructural homogeneity of 0.5 BaTiO3 - 0.5 KNbO3 (0.5BT-0.5KN) solid solution ceramics on the dielectric and piezoelectric properties was investigated. Microstructure of a sample prepared by a conventional sintering method was homogenous, and the room temperature crystal structure was assigned to cubic Pm3m symmetry and therefore the sample was paraelectric. On the other hand, microstructure of samples prepared by a two-step sintering method was inhomogeneous, that is, it was made of BT and KN grains. The large electric field piezoelectric constant d33 * increased with increasing interface area.",

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AU - Shimizu, Shigehito

AU - Kumada, Nobuhiro

AU - Nakashima, Kouichi

AU - Fujii, Ichiro

AU - Tanaka, Daisuke

AU - Furukawa, Masahito

AU - Kuroiwa, Yoshihiro

AU - Suzuki, Tohru

AU - Uchikoshi, Tetsuo

AU - Sakka, Yoshio

AU - Wada, Satoshi

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N2 - Effect of the microstructural homogeneity of 0.5 BaTiO3 - 0.5 KNbO3 (0.5BT-0.5KN) solid solution ceramics on the dielectric and piezoelectric properties was investigated. Microstructure of a sample prepared by a conventional sintering method was homogenous, and the room temperature crystal structure was assigned to cubic Pm3m symmetry and therefore the sample was paraelectric. On the other hand, microstructure of samples prepared by a two-step sintering method was inhomogeneous, that is, it was made of BT and KN grains. The large electric field piezoelectric constant d33 * increased with increasing interface area.

AB - Effect of the microstructural homogeneity of 0.5 BaTiO3 - 0.5 KNbO3 (0.5BT-0.5KN) solid solution ceramics on the dielectric and piezoelectric properties was investigated. Microstructure of a sample prepared by a conventional sintering method was homogenous, and the room temperature crystal structure was assigned to cubic Pm3m symmetry and therefore the sample was paraelectric. On the other hand, microstructure of samples prepared by a two-step sintering method was inhomogeneous, that is, it was made of BT and KN grains. The large electric field piezoelectric constant d33 * increased with increasing interface area.

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KW - Piezoelectric property

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