Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical Properties of 2-2 Mode Piezocomposites

2-2형 압전복합재료의 전기적 특성

  • 이상욱 (영남대학교 전자정보공학부) ;
  • 남효덕 (영남대학교 전자정보공학부) ;
  • 류정탁 (대구대학교 전자정보공학부) ;
  • 김연보 (대구대학교 전자정보공학부)
  • Published : 2005.08.01
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Abstract

We have investigated on the development of 2-2 mode piezocomposites that have better piezoelectric activity and lower acoustic impedance than those of conventional piezoceramics. In this study, we have investigated the electrical properties and acoustic impedance of 2-2 mode piezocomposite which were fabricated using the dice-and-fill technique for the different volume fractions of PZT The volume shrinkage of polymer is an important factor in 2-2 mode piezocomposites fabrication. The thickness mode electromechanical coupling factor($\kappa_t$) of PZT was compared with that of piezocomposites. It was shown that the 2-2 mode piezocomposites were much better than the PZT only. The acoustic impedance of 2-2 mode piezocomposites decreased linearly when PZT volume fraction was decreased.

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References

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