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Dielectric and Piezoelectric Properties of Pb-free Bi(Na, K)TiO3-SrTiO3 Ceramics with MnO2 Addition

MnO2 첨가에 따른 무연 Bi(Na, K)TiO3-SrTiO3 세라믹스의 유전 및 압전 특성

  • Published : 2004.10.01

Abstract

In this study, 0.96B $i_{0.5}$($Na_{0.84}$ $K_{0.16}$)$_{0.5}$Ti $O_3$ + 0.04SrTi $O_3$ + 0.3 wt% N $b_2$ $O_{5}$+0.2 wt% L $a_2$ $O_3$ + xwt % Mn $O_2$ were investigated as a function of the amount of Mn $O_2$ addition in order to improve dielectric and piezoelectric properties of Lead-free piezoelectric ceramics. With increasing the amount of Mn $O_2$ addition, the density, electromechanical coupling factor( $k_{p}$), piezoelectric constant( $d_{33}$, $g_{33}$) and curie temperature (Tc) showed the maximum value of 5.7 g/㎤, 38 %, 219 pC/N, 26 mVㆍm/N and 32$0^{\circ}C$ at 0.1 wt% Mn $O_2$ addition, respectively, and mechanical quality factor( $Q_{m}$ ) showed the maximum value of 158 at 0.3 wt% Mn $O_2$ addition.ddition.ion.n.

References

  1. B. jaffe, W. R. Cook, and H. Jaffe, 'Piezoe lectric Ceramics', Academic Press London, p. 115, 1971
  2. 이수호, 류주현, '전왜 액츄에이터의 특성 및 기술동향', 전기전자재료학회지, 11권, 2호, p. 164, 1998
  3. 민석규, 류주현, '전극직경크기에 따른 SMD형 $PbTiO_{3}$계 세라믹 공진자의 전기적특성', 전기전자재료학회논문지, 15권, 8호, p. 671, 2002
  4. 정영호, 홍재일, 류주현, 박창엽, '부분방전검출용 결합진동모드 음향방출센서의 특성', 전기전자재료학회논문지, 12권, 12호, p. 1195, 1999
  5. G. A. Smolenskii, V. A. Isupov, A. I. Agrano vskaya, and N. N. Krainik, Sov. Phys.-Solid State(Eegl,Tranl.), Vol. 2, No. 11, p. 2651, 1961
  6. T. Takenaka, K. Maruyama and K. Sakata, '($Bi_{1/2}Na_{1/2}$) system for leedfree piezoelectric ceramics', Jpn. J. Appl. Phy., Vol. 30, No. 9B, p. 2236, 1991 https://doi.org/10.1143/JJAP.30.2236
  7. X. Wang, H. L. Chan and C. Choy, 'piezoe ectric and dielectric properties of $CeO_{2}added(Bi_{0.5}Na_{0.5})_{0.94}Ba_{0.06}TiO_{3}$ leed-free eram ics', Solid State Communication. Vol. 125, p. 395, 2003 https://doi.org/10.1016/S0038-1098(02)00816-5
  8. T. Takenaka, United State Patent, 6004474, 1999
  9. 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
  10. A. Sasaki, T. Chiba, Y. Marniya, 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
  11. Yuhuan Xu, 'Ferroelectric materials and their application', North-Holland, Amsterdam, p. 136, 1991