Effect of sintering condition and V-doping on the piezoelectric properties of BaTiO3-Bi(Mg1/2Ti1/2)O3- BiFeO3 ceramics

Ichiro Fujii, Ryuta Mitsui, Kouichi Nakashima, Nobuhiro Kumada, Hisato Yabuta, Mikio Shimada, Takayuki Watanabe, Kaoru Miura, Satoshi Wada

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Abstract

0.3BaTiO30.1Bi( Mg1/2Ti1/2)O 30.6BiFeO3 ceramics were either doped with vanadium or sintered in calcined powder with the same composition. Compared to an undoped ceramic sintered without the calcined powder, both ceramics showed reduced leakage current densities (lower than 1 × 10-7A/cm2) and absence of dielectric relaxation behaviors observed in frequency- and temperature-dependent dielectric measurements. The Curie temperatures of both samples were higher than 460°C. The maximum field-induced strain over the applied field, Smax/Emax, of 366pm/V for the undoped ceramic sintered without the calcined powder increased to 455 and 799pm/V for the V-doped sample and the sample sintered with the calcined powder, respectively. The increase was discussed with reduced concentrations of bismuth vacancyoxygen vacancy defect dipoles.

Original languageEnglish
Pages (from-to)589-592
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume121
Issue number1416
DOIs
Publication statusPublished - Aug 2013
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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