Fabrication and Electrical Properties of Piezoceramics PZT-Polymer 1-3-0 Type Composite

압전세라믹 PZT-고분자 1-3-0형 복합압전체의 제조 및 전기적 특성

  • Shon, Mu-Hun (Dept.of Electric Engineering, School of Donga University) ;
  • Choi, Hun-Il (Dept.of Electric Engineering, School of Donga University) ;
  • Sa, Gong-Geon (Dept.of Electric Engineering, School of Donga University)
  • 손무헌 (동아대 공대 전기공학과) ;
  • 최헌일 (동아대 공대 전기공학과) ;
  • 사공건 (동아대 공대 전기공학과)
  • Published : 1999.04.01

Abstract

In this study, the piezoelectric ceramics PZT powders were synthesized by Wet-Dry combination method. And the flexible 1-3-0 type composites were favricated with piezoceramic PZT and Eccogel polymer matrix embedded 3rd phase. Dielectric constant of 1-3-0 type composites was lower than that of single phase PZT ceramics. Thickness mode coupling factor $k_t$ which was comparable with single phase PZT ceramics, and Mechanical Quality factor $Q_m$ were about 0.65 and 6 respectively. These composites are considered as a good candidates for broad-band type transducer applications. The acoustic impedance for 1-3-0 type composites was lower than that of single phase PZT ceramics. Therefore, these composites would be better used for hydrophone applications.

Keywords

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