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Effect of CuO on the Low Temperature Sintering Properties of PSN-PNN-PZT Ceramics

  • Jeong, Yeong-Ho (Korea Electric Power Research Institute) ;
  • Yoo, Ju-Hyun (Department of Electrical Engineering, Semyung University) ;
  • Nam, Seung-Hyon (Department of Electrical Engineering, Semyung University) ;
  • Lee, Su-Ho (Department of Electrical Engineering, Kyungsung University) ;
  • Chung, Kwang-Hyun (Department of Electrical Engineering, Inha University) ;
  • Lee, Duck-Chool (Department of Electrical Engineering, Inha University)
  • Published : 2004.06.01

Abstract

In this study, in order to develop the low temperature sintering ceramics for ultrasonic vibrator, Pb(Sb$\_$$\frac{1}{2}$/Nb$\_$$\frac{1}{2}$/) O$_3$-Pb(Ni$\_$1/3/Nb$\_$2/3/)O$_3$-Pb(Zr$\_$0.48/Ti$\_$0.52/)O$_3$ ceramics were manufactured as a function of the amount of CuO addition, and their dielectric and piezoelectric characteristics were investigated. With increasing CuO addition, the grain size and density increased up to 0.3 wt% CuO addition. Taking into consideration electromechanical coupling factor(k$\_$p/) of 0.53, mechanical quality factor(Q$\_$m/) of 423, dielectric constant($\varepsilon$$\_$r/) of 1,759 and piezoelectric constant(d$\_$33/) of 362pC/N, it could be concluded that 0.5 wt% CuO added composition ceramic sintered at 920$^{\circ}C$ was suitable for ultrasonic vibrator application.

Keywords

References

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