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-LST Ceramics with ZnO and CuO Addition

ZnO와 CuO 첨가에 따른 NKN-LST 세라믹스의 압전 특성

  • Lee, Seung-Hwan (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) ;
  • 이성갑 (경상대학교 세라믹공학과) ;
  • 이영희 (광운대학교 전자재료공학과)
  • Received : 2011.06.17
  • Accepted : 2011.07.22
  • Published : 2011.08.01
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Abstract

Additions (ZnO, CuO) doped $0.98(Na_{0.5}K_{0.5})NbO_3-0.02Li(Sb_{0.17}Ta_{0.83})O_3$ (0.98NKN-0.02LST-x) lead free piezoelectric ceramics have been fabricated by ordinary sintering technique. The effects of additions doping on the dielectric, piezoelectric, and ferroelectric properties of the ceramics were mainly investigated. X-ray diffraction of the sample appeared orthorhombic phase. The specimen doped with additions exhibits enhanced electrical properties ($d_{33}$= 153 pC/N). These results indicate that the 0.98NKN-0.02LST-x ceramics is a promising candidate for lead-free piezoelectric ceramics for applications such as piezoelectric actuators, harmonic oscillator and so on.

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References

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