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 0.98(Na0.5K0.5)NbO3-0.02Li(Sb0.17Ta0.83)O3+0.01wt%ZnO Ceramics with a Sintering Temperature

소결 온도에 따른 0.98(Na0.5K0.5)NbO3-0.02Li(Sb0.17Ta0.83)O3+0.01wt%ZnO 세라믹스의 압전 특성

  • Lee, Dong-Hyun (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Seung-Hwan (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Sung-Gap (School of Nano and Advanced Materials Engineering, Gyeongsang National University) ;
  • Lee, Ku-Tak (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Young-Hie (Department of Electronic Materials Engineering, Kwangwoon University)
  • 이동현 (광운대학교 전자재료공학과) ;
  • 이승환 (광운대학교 전자재료공학과) ;
  • 이성갑 (경상대학교 세라믹공학과) ;
  • 이규탁 (광운대학교 전자재료공학과) ;
  • 이영희 (광운대학교 전자재료공학과)
  • Received : 2011.04.21
  • Accepted : 2011.06.14
  • Published : 2011.07.01
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Abstract

We studied sintering temperature to enhance the piezoelectric properties of $0.98(Na_{0.5}K_{0.5})NbO_3-0.02Li(Sb_{0.17}Ta_{0.83})O_3$+0.01wt%ZnO (hereafter NKN-LST+ZnO) lead free piezoelectric ceramics. The synthesis and sintering method were the conventional solid state reaction method and sintering was executed at $1,080\sim1,120^{\circ}C$. We found that NKN-LST+ZnO ceramics at optimal sintering temperature showed the improved piezoelectric properties at the optimal sintering temperature. The NKN-LST+ZnO ceramics show good performance with piezoelectric constant $d_{33}$= 153 pC/N sintered at $1,090^{\circ}C$. The results reveal that NKN-LST+ZnO ceramics are promising candidate materials for lead-free piezoelectric application.

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References

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