DC electrorheology of fluid suspending barium titanate in the range of ferroelectric size effects

Hiroyuki Ikawa, Tetsuya Katou, Makoto Satou, Takahisa Omata, Tsuyoshi Hayashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Hydrothermally synthesized barium titanate, which was paraelectric, was heated at various temperatures. The powder was mixed with silicone oil at 10 vol% to measure rheological properties of the suspension without and with dc field of 2 kV/mm. The electrorheological effect (ER effect), the increase in shear stress by the dc field, showed a clear dependence to the heating temperature. The ER effect took a clear peak on a fluid dispersing powder heated at 700°C. The splitting of 200 and 002 X-ray diffractions of that barium titanate was uncertain, although this diffraction peak became clearly unsymmetrical.

Original languageEnglish
Pages (from-to)241-248
Number of pages8
JournalFerroelectrics
Volume203
Issue number1-4
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

Keywords

  • Barium titanate
  • ER fluid
  • Electrorhelogy
  • Ferroelectrics
  • Size effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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