Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effects of ZnO on the Piezoelectric Properties of PMS-PZT Ceramics

PMS-PZT 세라믹스의 압전특성에 미치는 ZnO의 영향

  • Son Y.-J. (Dept. of Materials Science and Engineering/NT Lab., Chungju National University) ;
  • Hwang D.-Y. (Dept. of Materials Science and Engineering/NT Lab., Chungju National University) ;
  • Kim J.-C. (Dept. of Materials Science and Engineering/NT Lab., Chungju National University) ;
  • Cho K.-W. (Dept. of Materials Science and Engineering/NT Lab., Chungju National University) ;
  • Kim Y.-M. (Dept. of Materials Development, Cores Electronics Corporation(CEC)) ;
  • Ur S.-C. (Dept. of Materials Science and Engineering/NT Lab., Chungju National University) ;
  • Kim I.-H. (Dept. of Materials Science and Engineering/NT Lab., Chungju National University)
  • 손영진 (충주대학교 신소재공학과/나노기술연구소) ;
  • 황동연 (충주대학교 신소재공학과/나노기술연구소) ;
  • 김재창 (충주대학교 신소재공학과/나노기술연구소) ;
  • 조경원 (충주대학교 신소재공학과/나노기술연구소) ;
  • 김영민 (고려전자(주) 소재개발과) ;
  • 어순철 (충주대학교 신소재공학과/나노기술연구소) ;
  • 김일호 (충주대학교 신소재공학과/나노기술연구소)
  • Published : 2004.11.01
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Abstract

Perovskite Pb(Mn_{1/3}Sbu_{2/3})O_2-Pb(Zr,Ti)O_3\;(PMS-PZT) was prepared and ZnO doping effects on its piezoelectric properties were investigated. Pyrochlore phase was not identified in the PMS-PZT ceramics with $0\sim5\;mol\%$ ZnO sintered at $1100^{\circ}C$ for 2 hrs, and maximum sintered density of $7.92 g/cm^3$ was obtained. Piezoelectric charge constant and voltage constant increased to $359{\times}10^{-12}\;C/N\;and\;22.5{\times}10^{-13}\;Vm/N$, respectively, with increasing ZnO content. Mechanical quality factor reduced considerably with increasing ZnO content. When the ZnO content was 3 $mol\%$, electromechanical coupling factor and relative dielectric constant showed maximum values of $56\%$ and 1727, respectively. This should be evaluated by complicated variations of sintered density, tetragonality of lattice, grain size, and A-site vacancy generated by ZnO addition and $Zn^{2+}$ substitution.

Keywords

References

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  2. Effects of Al2O3 on the piezoelectric properties of Pb(Mn1/3Nb2/3)O3-PbZrO3-PbTiO3 ceramics vol.16, pp.4, 2006, https://doi.org/10.1007/s10832-006-9877-1