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采用传统陶瓷工艺制备了(0.94-x)Bi0.5Na0.5TiO3-0.06BaTiO3-xLiNbO3(BNBT6-xLN,x=0~0.03)系无铅压电陶瓷,研究了LiNbO3的引入对BNBT6陶瓷微结构、铁电和压电性能的影响.X射线衍射分析表明,各组分均具有纯的钙钛矿结构.掺入适量LiNbO3可使陶瓷的晶粒变得更均匀,致密度增加.当x≤0.02时,剩余极化强度Pr随X增大略有降低;当X>0.02时,电滞回线出现变形,陶瓷内极性相和非极性相共存,Pr和矫顽场Ec都急剧下降.随着x的增加,压电常数d33先增大后减小,介电常数εr和介电损耗tanδ逐渐增大,退极化温度Td逐渐降低.当x=0.02时d33达到最大值150pC/N,此时kp=27%,Pr=34.1μC/cm2,Ec=28.8kV/cm.

参考文献

[1] Smolenskii G A;Isupov V A;Agranovskaya A I et al.[J].Soviet Physics - Solid State,1961,2:2651-2654.
[2] Takenaka T;Sakata K;Toda K .[J].Ferroelectrics,1990,106:375-380.
[3] Takenaka T;Maruyama K;Sakata K .[J].Japanese Journal of Applied Physics,1991,30(9B):2236-2239.
[4] Yoshii K;Hiruma Y;Nagata H et al.[J].Japanese Journal of Applied Physics,2006,45(5B):4493-4496.
[5] Chu B J;Chen D R;Li G R et al.[J].Journal of the European Ceramic Society,2002,22(13):2115-2121.
[6] 王洋,刘心宇,周昌荣,黄晋.BiFeO3改性Bi1/2Na1/2TiO3-BaTiO3基陶瓷电性能[J].电子元件与材料,2009(08):14-16.
[7] Zhang S T;Kounga A B;Aulbach E et al.[J].Journal of Applied Physics,2008,103(03):034108.
[8] Lin DM;Zheng QJ;Xu CG;Kwok KW .Structure, electrical properties and temperature characteristics of Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-Bi0.5Li0.5TiO3 lead-free piezoelectric ceramics[J].Applied physics, A. Materials science & processing,2008(2):549-558.
[9] Simoes A Z;Za Ghete M A;Stojanovic B D et al.[J].Journal of the American Ceramic Society,2004,24(06):1607-1613.
[10] Zhou C R;Liu X Y;Li W Z et al.[J].Journal of Physics and Chemistry of Solids,2009,70(3-4):541-545.
[11] Pengpat K;Jarupoom P;Kantha P et al.[J].Current Applied Physics,2008,8(3-4):241-245.
[12] Xu Q;Chen M;Chen W et al.[J].Acta Materialia,2008,56(03):642-650.
[13] Zou R Z;Wang H Q;Ma B et al.[J].Materials in Electronics,2009,20(11):1140-1143.
[14] Jo W;Granzow T;Aulbach E et al.[J].Journal of Applied Physics,2009,105(09):094102.
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