Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

Piezoelectric and Dielectric Characteristics of Lead Free [Li0.04(NayK1-y)0.96](Nb0.86Ta0.1Sb0.04)O3 Ceramics with the Variations of Na/K Ratio

Na/K 비 변화에 따른 무연 [Li0.04(NayK1-y)0.96](Nb0.86Ta0.1Sb0.04)O3 세라믹스의 압전 및 유전특성

  • 이갑수 (세명대학교 전기공학과) ;
  • 류주현 (세명대학교 전기공학과) ;
  • 홍재일 (동서울대학 전기정보제어과) ;
  • 이석태 (세명대학교 전자공학과) ;
  • 김용운 (세경대학 소방안전관리과) ;
  • 정회승 (주성대학 의용전자기기연구소)
  • Published : 2007.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, lead-free [$Li_{0.04}(Na_{y}K_{1-y})_{0.96}](Nb_{0.86}Ta_{0.1}Sb_{0.04})O_{3}$ (y=0.4 - 0.58) ceramics were manufactured using conventional miked oxide method for acoustic emission(AE) sensor application and their dielectric and piezoelectric properties were investigated with the variations of Na/K ratio. The samples in the composition Na/K=54/46 exhibited excellent electrical properties of $d_{33}=300$ PC/N and kp=0.49. Taking into consideration above piezoelectric properties, it can be concluded that the [$Li_{0.04}(Na_{y}K_{1-y})_{0.96}](Nb_{0.86}Ta_{0.1}Sb_{0.04})O_{3}$ system ceramics are the promising lead-free materials capable of substituting PZT system ceramics.

Keywords

References

  1. J. W. Waanders: Piezoelectric Ceramics-properties and Application, Philios Components, Eindhoven, 1991
  2. B. Jaffe, W. R. Cook, and H. Jaffe: Piezoelectric Ceramics, Academic. New York, 1971
  3. 이미영, 류성림, 류주현, 정광현, 정영호, 홍재일, 윤현상, '$MnO_{2}$ 첨가에 따른 무연 Bi(Na,K)TiO-$SrTiO_{3}$ 세라믹스의 유전 및 압전 특성', 전기전자재료학회논문지, 17권, 10호, p. 1056, 2004
  4. J. H. Yoo, J. I. Hong, H. S. Lee, Y. H. Jeong, B. Y. Lee, H. S. Song, and J. S. Kwon, 'Piezoelectric and dielectric properties of $Na_{2}O_{3}$ added Bi(Na,K)TiO-$SrTiO_{3}$ ceramics for pressure sensor application', Sensors and Actuators A: Physical, Vol. 126, Iss. 1, p. 41, 2006 https://doi.org/10.1016/j.sna.2005.09.005
  5. Y. Guo, K.-I. Kakimoto, and H. Ohsato, 'Dielectric and piezoelectric properties of lead-free $(Na_{0.5}K_{0.5})NbO_{3}$-$SrTiO_{3}$ ceramics', Solid State Commnications 129, p. 279, 2004 https://doi.org/10.1016/j.ssc.2003.10.026
  6. H. Nagata and T. Takenaka, 'Additive effects on electrical properties of ($Bi_{1/2}Na_{1/2}$) $TiO_3$ ferroelectric ceramics', J. Euro. Ceram. Soc., Vol. 21, p. 1299, 2001 https://doi.org/10.1016/S0955-2219(01)00005-X
  7. A. Sasaki, T. Chiba, Y. Mamiya, and E. Otsuki, 'Dielectric and piezoelectric properties of $(Bi_{0.5}Na_{0.5})TiO_{3}$-$Bi_{0.5}K_{0.5}$ $TiO_3$ systems', Jpn. J. Appl. Phy., Vol. 38, No. 9B, p. 5564, 1999 https://doi.org/10.1143/JJAP.38.5564