Dielectric properties of barium titanate ceramics with nano-sized domain

Yoichi Kigoshi, Saki Hatta, Takasi Teranisi, Takuya Hoshina, Hiroaki Takeda, Osamu Sakurai, Takaaki Tsurumi

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

3 Citations (Scopus)

Abstract

Barium titanate (BaTiO3) ceramics with various grain sizes from 0.7 to 13 μm on average were prepared by a conventional sintering method, a two-step sintering method and a rate controlled two-step sintering method. The permittivity of the ceramics was increased with decreasing grain size to 1.1 μm on average. However, the permittivity of the ceramics was decreased when the grain size was below 1 μm. The field emission scanning electron microscope (FE-SEM) observations revealed that the 90° domain width decreased with decreasing the grain size. By ultrawide range dielectric spectra from kHz to THz range of the BaTiO3 ceramics, the domain contribution to the permittivity was investigated. For the BaTiO3 ceramics with grain sizes over 1 μm, the dipole polarizability and the ionic polarizability were enhanced by high domain-wall density. In contrast, for the BaTiO 3 ceramics with grain sizes below 1 μm, these polarizabilities were weakened.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages27-30
Number of pages4
Volume445
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event9th Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, Japan
Duration: Oct 23 2009Oct 24 2009

Publication series

NameKey Engineering Materials
Volume445
ISSN (Print)10139826

Other

Other9th Electronics Division Meeting of the Ceramic Society of Japan
CountryJapan
CityTokyo
Period10/23/0910/24/09

Fingerprint

Barium titanate
Dielectric properties
Permittivity
Sintering
Domain walls
Field emission
Electron microscopes
Scanning

Keywords

  • Barium titanate
  • Dielectric property
  • Domain
  • Polarization
  • Size effect

ASJC Scopus subject areas

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

Cite this

Kigoshi, Y., Hatta, S., Teranisi, T., Hoshina, T., Takeda, H., Sakurai, O., & Tsurumi, T. (2010). Dielectric properties of barium titanate ceramics with nano-sized domain. In Key Engineering Materials (Vol. 445, pp. 27-30). (Key Engineering Materials; Vol. 445). https://doi.org/10.4028/www.scientific.net/KEM.445.27

Dielectric properties of barium titanate ceramics with nano-sized domain. / Kigoshi, Yoichi; Hatta, Saki; Teranisi, Takasi; Hoshina, Takuya; Takeda, Hiroaki; Sakurai, Osamu; Tsurumi, Takaaki.

Key Engineering Materials. Vol. 445 2010. p. 27-30 (Key Engineering Materials; Vol. 445).

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

Kigoshi, Y, Hatta, S, Teranisi, T, Hoshina, T, Takeda, H, Sakurai, O & Tsurumi, T 2010, Dielectric properties of barium titanate ceramics with nano-sized domain. in Key Engineering Materials. vol. 445, Key Engineering Materials, vol. 445, pp. 27-30, 9th Electronics Division Meeting of the Ceramic Society of Japan, Tokyo, Japan, 10/23/09. https://doi.org/10.4028/www.scientific.net/KEM.445.27
Kigoshi Y, Hatta S, Teranisi T, Hoshina T, Takeda H, Sakurai O et al. Dielectric properties of barium titanate ceramics with nano-sized domain. In Key Engineering Materials. Vol. 445. 2010. p. 27-30. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.445.27
Kigoshi, Yoichi ; Hatta, Saki ; Teranisi, Takasi ; Hoshina, Takuya ; Takeda, Hiroaki ; Sakurai, Osamu ; Tsurumi, Takaaki. / Dielectric properties of barium titanate ceramics with nano-sized domain. Key Engineering Materials. Vol. 445 2010. pp. 27-30 (Key Engineering Materials).
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