Lead-free piezoelectric ceramics (Na0.5K0.5-xLix)NbO3 (x=0.057-0.066) were synthesized by an ordinary sintering technique. Substituting Li for K can lead to structural distortion, which improves the Curie temperature(TC) greatly. By adding appropriate LiNbO3 content, piezoelectric constant d33 values reach 202-212 pC/N.Electromechanical coefficients of the planar mode reach 44.4%-46.8%. The dielectric loss is below 2.6%,which is much lower than reported (about 50%). The TC of (Na0.5K0.5-xLix)NbO3 (x=0.057-0.066) is in the range of 490-510℃, at least 70℃ higher than that of pure (Na0.5K0.5)NbO3 ceramics. The results show that (Na0.5K0.5-xLix)NbO3 ceramic is a kind of good lead-free high-temperature piezoelectric material.
参考文献
| [1] | E Ringgaard;T Wurlitzer .[J].Journal of the European Ceramic Society,2005,25:2701. |
| [2] | Y M Chiang;G W Farrey;A N Soukhojak .[J].Applied Physics Letters,1998,73:3683. |
| [3] | B Chu;D Chen;G Li;Q Yin .[J].Journal of the European Ceramic Society,2002,22:2115. |
| [4] | S E Park;S J Chung .[J].Journal of the American Ceramic Society,1996,79:1290. |
| [5] | K Kakimoto;I Masuda;H Ohsato .[J].Japanese Journal of Applied Physics Part 1:Regular Papers and Short Notes and Review Papers,2003,42(9B):6102. |
| [6] | G Shirane;R Newnham;R Pepinsky .[J].Physical Review,1954,96:581. |
| [7] | L Egerton;D M Dillon .[J].Journal of the American Ceramic Society,1959,42:438. |
| [8] | R E Jaeger;L Egerton .[J].Journal of the American Ceramic Society,1962,45:209. |
| [9] | G H Haertling .[J].Journal of the American Ceramic Society,1967,50:329. |
| [10] | M Matsubara;T Yamaguchi;K Kikuta;S Hirano .[J].Japanese Journal of Applied Physics,2004,43(10):7159. |
| [11] | J F Li;K Wang;B P Zhang;L M Zhang .[J].Journal of the American Ceramic Society,2006,89(02):706. |
| [12] | Y P Guo;K Kakimoto;H Ohsato .[J].Applied Physics Letters,2004,85:4121. |
| [13] | Y P Guo;K Kakimoto;H Ohsato .[J].Materials Letters,2005,59:241. |
| [14] | E Hollenstein;M Davis;D Damjanovic;N Setter .[J].Applied Physics Letters,2005,87:182905. |
| [15] | G Z Zang;J F Wang;H C Chen;W B Su C M Wang P Qi B Q Ming J Du and L M Zheng .[J].Applied Physics Letters,2006,88(21):212908. |
| [16] | Y Saito;H Takao;T Tani;T Nonoyama K Takatori T Homma T Nagaya and M Nakamura .[J].NATURE,2004,432:84. |
| [17] | B S Li;Z G Zhu;G R Li;A L Ding .[J].Journal of Materials Science and Technology,2005,21(03):386. |
| [18] | H Y Park;C W Ahn;H C Song;J H Lee S Nahm K Uchino H G Lee and H J Lee .[J].Applied Physics Letters,2006,89:062906. |
| [19] | S J Zhang;R Xia;T R Shrout;G Z Zang and J F Wang .[J].Journal of Applied Physics,2006,100:104108. |
| [20] | M Ichiki;L Zhang;M Tamka;R Maeda .[J].Journal of the European Ceramic Society,2004,24:2693. |
| [21] | R Zuo;J Rodel;R Chen;L Li .[J].Journal of the American Ceramic Society,2006,89(06):2010. |
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