Dielectric, Ferroelectric and Piezoelectric Properties of Barium Titanate and Bismuth Potassium Titanate Solid-Solution Ceramics

• HIRUMA Yuji

  Faculty of Science and Technology, Tokyo University of Science

• NAGATA Hajime

  Faculty of Science and Technology, Tokyo University of Science

• TAKENAKA Tadashi

  Faculty of Science and Technology, Tokyo University of Science

Abstract

Dielectric, ferroelectric and piezoelectric properties of barium titanate, BaTiO₃-based solid solution, (1-x)BaTiO_3-x(Bi_1/2K_1/2)TiO₃ (BTBK100x) were studied as a lead-free piezoelectric material. Curie temperature, T_c, of the BTBK100x ceramics shifted to higher temperature with increasing the amount (x) of (Bi_1/2K_1/2)TiO₃ and the T_c at x=0.2 was higher than 200°C. Electromechanical coupling factor, k₃₃, and piezoelectric constant, d₃₃, of BTBK20+MnCO₃ (0.1 wt%) were 0.33 and 54.6 pC/N, respectively.

Journal

• Journal of the Ceramic Society of Japan, Supplement

  Journal of the Ceramic Society of Japan, Supplement 112 (0), S1125-S1128, 2004

  The Ceramic Society of Japan

Keywords

• Lead-free piezoelectric ceramics
• BaTiO₃
• (Bi_1/2Na_1/2)TiO₃
• Dielectric properties
• Piezoelectric properties
• D-E hysterisis loop
• Curie temperature

Details

• CRID: 1390282680501043200
• NII Article ID: 130004610034
• DOI: 10.14852/jcersjsuppl.112.0.s1125.0
• ISSN: 13492756
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed