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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationElectroceramics in Japan XIV
PublisherTrans Tech Publications Ltd
Pages89-92
Number of pages4
ISBN (Print)9783037851821
DOIs
Publication statusPublished - 2011 Jan 1
Externally publishedYes

Publication series

NameKey Engineering Materials
Volume485
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Barium titanate
  • Interface region
  • MPB engineering
  • Piezoelectric property
  • Potassium niobate

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    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