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

5 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

Fingerprint

Grain growth
ceramics
Fabrication
fabrication
Electromechanical coupling
Remanence
Curie temperature
Platelets
Sintering
Polarization
Powders
Hydrogen
polarization
platelets
Chemical analysis
sintering
hydrogen
matrices

ASJC Scopus subject areas

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

Cite this

Fabrication of (110) grain-oriented 0.15BaTiO3-0.85(Bi0.5Na0.5)TiO3 ceramics by a reactive templated grain growth method. / Ueno, Shintaro; Itou, Ryo; Suzuki, Tohru; Wada, Satoshi; Fujii, Ichiro.

In: Japanese journal of applied physics, Vol. 56, No. 10, 10PD06, 01.10.2017.

Research output: Contribution to journalArticle

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