Fabrication of (110) grain-oriented 0.15BaTiO3-0.85(Bi0.5Na0.5)TiO3 ceramics by a reactive templated grain growth method

Shintaro Ueno, Ryo Itou, Tohru Suzuki, Satoshi Wada, Ichiro Fujii

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

(110) grain-oriented ceramics with the composition of 0.15BaTiO3-0.85(Bi0.5Na0.5)TiO3 with a high Curie temperature of >300 °C were successfully fabricated by reactive templated grain growth of layered hydrogen titanate platelets with (Bi0.5Na0.5)TiO3 and BaCO3 matrix powders. A large degree of (110) orientation F110 = 84% was achieved by decreasing green sheet thickness and application of pressure on a compact during sintering. As a consequence, improved remanent polarization was observed in these ceramics compared with randomly oriented ceramics, owing to easier polarization switching. A piezoelectric constant d33 of 103 pC/N and an electromechanical coupling factor k33 of 0.44 were obtained for the (110) grain-oriented ceramics.

Original languageEnglish
Article number10PD06
JournalJapanese journal of applied physics
Volume56
Issue number10
DOIs
Publication statusPublished - 2017 Oct 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Fabrication of (110) grain-oriented 0.15BaTiO<sub>3</sub>-0.85(Bi<sub>0.5</sub>Na<sub>0.5</sub>)TiO<sub>3</sub> ceramics by a reactive templated grain growth method'. Together they form a unique fingerprint.

  • Cite this