Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Strain Properties of Sn-Substituted PLZT(7.5/70/30) for Application of Ceramic Actuator

세라믹 엑튜에이터 응용을 위한 Sn 치환의 PLZT(7.5/70/30)의 변형특성

  • 고태경 (인하대학교 무기재료공학과) ;
  • 강현구 (인하대학교 무기재료공학과) ;
  • 박재환 (한국과학기술연구원)
  • Published : 1998.05.01
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Abstract

PLZT(7.5/70/30) was initially a cubic phase having diffuse phase transition at high temperatures. Sn-sub-stitution for PLZT(7.5/70/30) underwent an irreversible phase transition from cubic to rhom-bohedral structure. However PLZTS(7.5/70/30/y=5 & 10) could be reversibly switched from paraelectric to ferroelectric phase under electric field without showing a significant change in crystal structure. With in-creasing the amount of Sn-substitution the P-E behaviors of the PLZTS became more antiferroelectric which was similar to the effect of La-substitution of PLZT. Our study may suggest that Sn-substitution ef-fectively weakens a formation of long-range order between polar Ti-or Zr- containing octahedra which greatly affects strain properties.

Keywords

References

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