Grain-Size Effect on Electrical Properties of (Bi1/2K1/2)TiO3 Ceramics

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In this study, Bi2O3-doped bismuth potassium titanate, (Bi1/2K1/2)TiO3, (abbreviated to BKT-Bi$x$; $x=0$, 0.1, 0.2, 0.4, and 0.6 wt %) ceramics were fabricated by hot-pressing method, and its electrical properties were investigated in detail. Moreover, BKT-Bi0.6 was annealed at 1040 °C for 4–20 h to develop grains [abbreviated to BKT-Bi0.6($y$ h); $y=4$, 10, and 20]. The ferroelectric properties were improved by grain growth, and the remanent polarization, $P_{\text{r}}$, of BKT-Bi0.6(10 h) was 27.6 μC/cm2. The piezoelectric properties were improved by field cooling method, and the electromechanical coupling factor, $k_{33}$, and piezoelectric constant, $d_{33}$, of BKT-Bi0.6(10 h) improved up to 0.40 and 101 pC/N, respectively. Moreover, the temperature dependences of piezoelectric properties were measured, and piezoelectricity disappeared at 280 °C for BKT-Bi0.6(10 h).

収録刊行物

  • Japanese journal of applied physics. Pt. 1, Regular papers & short notes  

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes 46(3A), 1081-1084, 2007-03-15 

    Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics

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各種コード

  • NII論文ID(NAID)
    10018867280
  • NII書誌ID(NCID)
    AA10457675
  • 本文言語コード
    EN
  • 資料種別
    ART
  • 雑誌種別
    大学紀要
  • ISSN
    0021-4922
  • NDL 記事登録ID
    8688300
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A375
  • データ提供元
    CJP書誌  NDL  JSAP 
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