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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Piezoelectric Properties of NKN-BZT Ceramics Sintered with CuO and ZnO Additives

CuO와 ZnO 첨가에 따른 NKN-BZT 세라믹스의 압전 특성

  • Lee, Seung-Hwan (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Baek, Sang-Don (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Dong-Hyun (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Sung-Gap (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Lee, Young-Hie (Department of Electronic Materials Engineering, Kwangwoon University)
  • 이승환 (광운대학교 전자재료공학과) ;
  • 백상돈 (광운대학교 전자재료공학과) ;
  • 이동현 (광운대학교 전자재료공학과) ;
  • 이성갑 (경상대학교 세라믹공학과) ;
  • 이영희 (광운대학교 전자재료공학과)
  • Received : 2011.06.17
  • Accepted : 2011.07.05
  • Published : 2011.08.01
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Abstract

The lead-free $0.98(Na_{0.5},K_{0.5})NbO_3-0.02Ba(Zr_{0.52},Ti_{0.48})O_3$-(hereafter NKN-BZT) CuO, ZnO-doped ceramics were prepared using a conventional mixed oxide method. NKN-BZT ceramics doped CuO, ZnO have superior structural and electrical properties than pure NKN-BZT ceramics. For the NKN-BZT-ZnO ceramics sintered at $1,120^{\circ}C$, piezoelectric constant ($d_{33}$) of sample showed the optimum values of 172 pC/N. The $0.98(Na_{0.5},K_{0.5})NbO_3-0.02Ba(Zr_{0.52},Ti_{0.48})O_3$-ZnO ceramics are a promising candidate for lead-free piezoelectric materials.

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References

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