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2007 , Vol. 22 >Issue 2: 323 - 327

DOI: https://doi.org/10.3724/SP.J.1077.2007.00323

研究论文

NbO3-LiNbO3无铅压电陶瓷的烧结特性和压电性能研究

  • 唐福生 ,
  • 杜红亮 ,
  • 刘代军 ,
  • 罗 发 ,
  • 周万城
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  • 西北工业大学凝固技术国家重点实验室, 西安 710072

收稿日期: 2006-05-22

  修回日期: 2006-09-22

  网络出版日期: 2007-03-20

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Sintering Characteristic and Piezoelectric Properties of Lead-free (K0.5 Na0.5)NbO3-LiNbO3 Ceramics

  • TANG Fu-Sheng ,
  • DU Hong-Liang ,
  • LIU Dai-Jun ,
  • LUO Fa ,
  • ZHOU Wan-Cheng
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  • State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China

Received date: 2006-05-22

  Revised date: 2006-09-22

  Online published: 2007-03-20

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摘要

采用传统陶瓷烧结工艺制备了(1-x)(K0.5Na0.5)NbO3- xLiNbO3无铅压电陶瓷, 研究了陶瓷的结构、烧结特性及电性能特征. 制备的 (K0.5Na0.5)NbO3- xLiNbO3陶瓷为单一的钙钛矿结构, 室温下其相结构随LiNbO3含量增加逐渐由正交相向四方相转变, 显微结构也由于LiNbO3含量的不同而表现出很大差异. 与(K0.5Na0.5)NbO3陶瓷相比, (K0.5Na0.5)NbO3- LiNbO3陶瓷的烧结温度降低, 烧结特性得到改善. (K0.5Na0.5)NbO3- LiNbO3陶瓷表现出优越的压电性能, 其中0.94(K0.5Na0.5)NbO3- 0.06LiNbO3(x=0.06)陶瓷的压电常数d33达到205pC/N, 机电耦合系数kp为40.3%, kt达到49.8%.

关键词： 无铅压电陶瓷; 压电性能; (K0.5Na0.5)NbO3-LiNbO3; 钙钛矿结构

本文引用格式

唐福生 , 杜红亮 , 刘代军 , 罗 发 , 周万城 . NbO3-LiNbO3无铅压电陶瓷的烧结特性和压电性能研究[J]. 无机材料学报, 2007 , 22(2) : 323 -327 . DOI: 10.3724/SP.J.1077.2007.00323

Abstract

Lead-free (1-x)(1-x)(K0.5Na0.5)NbO3- xLiNbO3 piezoelectric ceramics were prepared by a traditional ceramic processing. The sintering characteristic, the microstructure and electrical properties of (1-x)(K0.5Na0.5)NbO3- LiNbO3
ceramics were investigated. Results show that all specimens exhibit a pure perovskite structure and the phase structure at room temperature transforms from orthorhombic to tetragonal with the increase of LiNbO3.The microstructure of (1-x)(K0.5Na0.5)NbO3- LiNbO3 ceramics exhibits apparent difference due to different amounts of LiNbO3. The sinterability of (1-x)(K0.5Na0.5)NbO3- LiNbO3 is improved and the sintering temperature is lower than that of pure KNN ceramics. The (1-x)(K0.5Na0.5)NbO3- xLiNbO3(x=0.06) ceramics exhibits an excellent piezoelectric properties with the piezoelectric constant d33, the electromechanical coupling coefficients kp and kt of 205pC/N, 40.3% and 49.8%, respectively.

Key words： lead-free piezoelectric ceramics; piezoelectric properties; (K0.5Na0.5)NbO3-LiNbO3; perovskite structure

参考文献

[1] Abraham T. Am. Ceram. Bull., 2000, 9: 45-47.
[2] Park S E, Shrout T R. J. Appl. Phys., 1997, 82: 1804-1806.
[3] 裴志斌, 杜红亮, 车 军, 等(PEI Zhi-Bin, et al). 无机材料学报(Journal of Inorganic Materials), 2005, 20 (4): 988-992.
[4] Guo R, Cross L E, Park S E, et al. Phys. Rev. Lett., 2000, 84: 5423-5426.
[5] Marder M D, Damjanovic D, Setter N. Journal of Electroceramics., 2004, 13: 385-392.
[6] Li Y, Moon K, Wong C P. Science, 2005, 308 (6): 1419.
[7] 黎辉东, 冯楚德, 向平华(LI Hui-Dong, et al). 无机材料学报(Journal of Inorganic Materials), 2004, 19 (3): 579-585.
[8] Saito Y, Takao H, Tani T, et al. Nature, 2004, 432: 84-87.
[9] Eric Cross. Nature, 2004, 432: 24-25.
[10] Ringgaard E, Wurlitzer T, Wolny W W. J. Europ. Ceram. Soc., 2005, 319: 97-107.
[11] Ringgaard E, Wurlitzer T. J. Europ. Ceram. Soc., 2005, 25: 2719-2722.
[12] Egerton, Dillow D M. J. Am. Ceram. Soc., 1954, 42 (9): 438-442.
[13] Jeager R E, Egerton L. J. Am. Ceram. Soc., 1962, 45 (5): 208-213.
[14] Wang R P, Xie R J, Sekiya T, et al. Jpn. J. Appl. Phys., 2002, 41: 7119-7122.
[15] Malic B, Bernard J, Holc J, et al. J. Europ. Ceram. Soc., 2005, 25: 2707-2711.
[16] Bobnar V, Bernard J, Kosec M. Appl. Phys. Lett., 2004, 85: 994-996.
[17] Kosec M, Bobnar V, Hrovat M, et al. J. Mater. Res., 2004, 19: 1849-1854.
[18] Lu Y T, Chen X M, Jin D Z, et al. Mater. Res. Bull., 2005, 40: 1847-1855.
[19] Matsubara M, Yamaguchi T, Kikuta K, et al. Jpn. J. Appl. Phys., 2005, 44: 258-263.
[20] Guo Y P, Kakimoto K, Ohsato H. Appl. Phys. Lett., 2004, 85: 4121-4123.
[21] Kakimoto K, Akao K, Guo Yiping, et al. Jpn. J. Appl. Phys., 2005, 44: 7064-7067.
[22] Matsubara M, Yamaguchi T, Kikuta K, et al. Jpn. J. Appl. Phys., 2005, 44: 6136-6142.
[23] 殷庆瑞, 祝炳和. 功能陶瓷的显微结构、性能与制备技术, 第一版.北京: 冶金工业出版社, 2005. 29.
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