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Microstructure and Piezoelectric Characteristics of PSN-PZT Ceramics as a Function of PNW Substitution

PNW 치환에 따른 PSN-PZT 세라믹스의 미세구조 및 압전특성

  • 류주현 (세명대학교 전기공학과) ;
  • 우원희 (세명대학교 전기공학과) ;
  • 오동언 (세명대학교 전기공학과) ;
  • 류성림 (충주대학교 재료공학과)
  • Published : 2003.10.01

Abstract

In this study, microstructure and piezoelectric properties of PSN-PZT ceramics modified with BiFeO$_3$ were investigated as a function of PNW substitution. With the increase of PNW substitution, tetragonality, Curie temperature and mechanical quality factor were decreased but grain size and electromechanical coupling factor(kp) was gradually increased. At 4 mol[%] PNW substitution, maximum kp of 0.567 was obtained.

Keywords

PNW substitution;PSN-PZT ceramics;Tetragonality;Curie temperature

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