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 S. Suzuki, Tetsuo Uchikoshi, Yoshio Sakka, Satoshi Wada

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

KBaTiNbO6, i.e., 0.5BT-0.5KN complete solid solution ceramics and barium titanate (BaTiO3, BT) - potassium niobate (KNbO3, KN) system (0.5BT-0.5KN) ceramics with various microstructures were prepared by conventional sintering method and two-step sintering method. The 0.5BT-0.5KN with diffusion of BT and KN completely were paraelectrics. Their microstructures were investigated using X-ray diffraction (XRD) measurement and scanning electron microscopy (SEM). KBaTiNbO6 at room temperature was assigned to cubic Pm3m symmetry. For the 0.5BT-0.5KN patially solid solution system ceramics, the control of the interface area between two phases was important to enhance piezoelectric property. Their piezoelectric property was measured, and the apparent piezoelectric constant d33* increased with increasing interface area.

Original languageEnglish
Article number092058
JournalIOP Conference Series: Materials Science and Engineering
Volume18
Issue numberSYMPOSIUM 6
DOIs
Publication statusPublished - 2011 Jan 1
Externally publishedYes
Event3rd International Congress on Ceramics, ICC 2011 - Osaka, Japan
Duration: 2010 Nov 142010 Nov 18

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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