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Reactive Templated Grain Growth법에 의해 제조된 (Bi0.5Na0.5)TiO3-BaTiO3 세라믹스의 압전 특성

Piezoelectric properties of (Bi0.5Na0.5)TiO3-BaTiO3 ceramics prepared by reactive templated grain growth method

  • 안병국 (전북대학교 신소재공학부)
  • Ahn, Byung-Guk (Department of Advanced Materials Engineering Chonbuk National University)
  • 발행 : 2007.05.31

초록

Crystallographically {h00}-oriented $0.94(Bi_{0.5}Na_{0.5})TiO_{3}-0.06BaTiO_{3}$ (0.94BNT-0.06BT) ceramics was prepared by the Reactive Templated Grain Growth (RTGG) method using the $Bi_{4}Ti_{3}O_{12}$ template. The sheets prepared by tape-casting of slurries containing the templates and starting materials are cut, laminated, and pressed. Then burn-out and sintering was conducted. Also, to compare with the 0.94BNT-0.06BT ceramics prepared by the RTGG method another 0.94BNT-0.06BT ceramics was prepared by the solid-state method. In the optimum of this experiments range, the degree of orientation of the 0.94BNT-0.06BT ceramics prepared by the RTGG method was texture fraction${\approx}92%$ and the piezoelectric constant($d_{33}$) and coupling factor($k_{p}$) was obtained to $d_{33}{\approx}205{\;}pC/N$, $k_{p}{\approx}0.33%$, respectively.

키워드

참고문헌

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