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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Microstructure and Piezoelectric Properties of PMN-PNN-PZT Ceramics

PMN-PNN-PZT 세라믹스의 미세구조 및 압전 특성

  • Yoo, Ju-Hyun (Department of Electrical Engineering, Semyung University) ;
  • Kim, Seung-Won (Department of Electrical Engineering, Semyung University)
  • Received : 2017.04.12
  • Accepted : 2017.06.02
  • Published : 2017.08.01
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Abstract

$Pb(Mn_{1/3}Nb_{2/3})_{0.07}(Ni_{1/3}Nb_{2/3})_{0.10}(Zr_{0.5}Ti_{0.5})_{0.83}O_3$ composition ceramics with high piezoelectric properties were fabricated by the columbite precursor method for ultrasonic generators, and the effects of sintering temperature on microstructure and piezoelectric properties were systematically investigated. It was found that the tetragonality of the ceramics decreased with increase in sintering temperature. Moreover, excellent physical properties such as $d_{33}=447pC/N$, ${\varepsilon}_r=1,843$, $k_p=0.641$, and $Q_m=1,207$ were obtained for an ultrasonic generator when the second calcination temperature and sintering temperature were $720^{\circ}C$ and $920^{\circ}C$, respectively.

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References

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