Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Piezoelectric Sounder Using the PMN-PT-PZ with Sr Sustitutions

Sr이 치환된 PMN-PT-PZ 계 세라믹스를 이용한 압전 발음체에 관한 연구

  • You, H.S. (Dep. of Electrical Eng. Yonsei University) ;
  • Paek, D.S. (Dep. of Electrical Eng. Yonsei University) ;
  • Kang, J.K. (Dep. of Electrical Eng. Yonsei University) ;
  • Park, C.Y. (Dep. of Electrical Eng. Yonsei University)
  • Published : 1991.11.22
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Abstract

In this study, we investigated the possibilty that $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3-PbZrO_3$ ceramics with strontium substitutions could be used for piezoelectric sounders. Piezoelectric buzzer is one of them. By partially substituting Sr for Ph, dielectric constants had values greater than 2000, the value proper piezoelectric buzzer, piezoelectric constant($d_{31}$) had a maximum value, 298 $[10^{-12}C/N]$, at the Sr 5 mol % substitution. Sound level of piezoelectric buzzer had the highest value of 91 dB at the Sr 5 mol % substitution.

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