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
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
485
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

ASJC Scopus subject areas

  • 材料科学一般
  • 材料力学
  • 機械工学

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