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

  • 제19권10호
  • /
  • Pages.966-970
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  • 2006
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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후막 스피커 응용을 위한 Pb(Zr1Ti)O3-PVDF 복합체의 압전 특성 평가

Evaluation of Piezoelectric Properties in Pb(Zr1Ti)O3-PVDF Composites for Thick Film Speaker Application

  • 발행 : 2006.10.01
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초록

We reported on characteristics of the piezoelectric ceramic-polymer composite for the application of the thick-film speaker. The PVDF-PZT composites were fabricated to incorporate the advantages of both ceramic and polymer with various mixing ratios by 3-roll mill mixer. The composite solutions were coated by the conventional screen-printing method on ITO electrode coated PET (Polyethylene terephthalate) polymer film. After depositing the top-electrode of silver-paste, 4 kV/mm of DC field was applied at $120^{\circ}C$ for 30 min to poling the composite films. The value of $d_{33}$ (piezoelectric charge constant) was increased when the PZT weight percent was increased. The maximum value of the $d_{33}$ was 24 pC/N at 70 wt% PZT. But the $g{33}$ (piezoelectric voltage constant) showed the maximum value of $32mV{\cdot}m/N$ at 65 wt% of PZT powder. The SPL (sound pressure level) of the speaker fabricated with the 65:35 composite film was about 68 dB at 1 kHz.

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참고문헌

  1. 김성진, '스피커 산업 동향 및 필름 스피커 기술 개요', 전기전자재료, 19권, 8호, p. 13, 2006
  2. 이승환, 'MEMS 기술에 의한 초소형 마이크로 스피커', 전기전자재료, 19권, 8호, p. 24, 2006
  3. 김세규, '가전용 speaker의 최근 기술동향', 전기전자재료, 19권, 8호, p. 33, 2006
  4. Abram R. A., 'The theory of a piezoelectric plastic film transducer for earphones', J Phys. D: Appl. Phys., Vol. 13, p, 201, 1980
  5. A. Safari, 'Development of piezoelectric composites for transducer', J. Phys. III France, Vol. 4, p. 1129, 1994
  6. B. Wei and Y. Daben, 'Dielectric and piezoelectric properties of 0-3 composite film in PCM/PVDF and PZT/PVDF', Ferroelectrics, Vol. 157, p. 427, 1994
  7. E. Venkatragavaraj, B. Satish, P. R. Vinod, and M. S. Vijaya, 'Piezoelectric properties of ferroelectric PZT-polymer composites', J Phys. D: Appl. Phys., Vol. 34, p. 487, 2001 https://doi.org/10.1088/0022-3727/34/4/308
  8. 박원구, 황운석, 권오양, 오태성, 김우진, '재료과학의 이해와 응용', McGraw-Hill Korea, 서울, p. 755, 2000
  9. Y. Xu, 'Ferroelectric Materials and Their Application', Elsevier Science, New York, p, 330, 1991
  10. A. J. Moulson and J. M. Herbert, 'Electroceramics', John Wiley & Sons, West Sussex, p. 406, 2003
  11. 이승환, 서경원, 유금표, 권순용, 'C-축 배향된 ZnO 박막을 이용하여 제작한 압전형 마이크로 스피커의 특성 평가', 전기전자재료학회논문지, 19권, 6호, p. 531, 2006 https://doi.org/10.4313/JKEM.2006.19.6.531