Research Paper

Sintering Processing and Piezoelectric Properties of K0.5Na0.5NbO3-BiFeO3
Lead-free Ceramics

  • JIANG Min-Hong ,
  • CHEN He-Xin ,
  • LIU Xin-Yu ,
  • YANG Li-Qing ,
  • ZHOU Chang-Rong
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  • (1. Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China; 2. College of Material Science and Engineering, Central South University, Changsha 410083, China)

Received date: 2009-03-02

  Revised date: 2009-05-05

  Online published: 2010-04-22

Abstract

Leadfree BiFeO3 (BF) doped K0.5Na0.5NbO3 (KNN) piezoelectric ceramics were prepared by a traditional ceramic processing. The effects of sintering temperature and holding time on the microstructure, phase transition, density and piezoelectric properties of BF doped KNN ceramics were investigated. The results show that all specimens exhibit a pure perovskite structure. The surface micrograph, density and piezoelectric properties of the ceramics depend strongly on the sintering temperature and holding time. When being sintered at temperature from 1100℃ to 1150℃ for 3h, the d33, Kp and Qm of the ceramics increase, while the tanδ decreases with the sintering temperature increasing. When being sintered at 1150℃ for 1h to 3h, the d33, Kp and Qm of the ceramics increase firstly and then remain unchanged, while the tanδ decreases firstly and then also remains unchanged with the holding time increasing. The BFdoped KNN ceramics sintered at 1150℃ for 2h exhibit excellent properties (ρ=4.50g/cm3d33=132pC/N, Kp=45%, Qm=333.73, tanδ=2.39%).

Cite this article

JIANG Min-Hong , CHEN He-Xin , LIU Xin-Yu , YANG Li-Qing , ZHOU Chang-Rong . Sintering Processing and Piezoelectric Properties of K0.5Na0.5NbO3-BiFeO3
Lead-free Ceramics[J]. Journal of Inorganic Materials, 2009
, 24(6) : 1178 -1182 . DOI: 10.3724/SP.J.1077.2009.01178

References

[1]张利民,张波萍,李敬锋, 等. 硅酸盐学报, 2007, 35(1):1-5.
[2]唐福生, 杜红亮, 刘代军, 等(TANG Fu-Sheng, et al). 无机材料学报(Journal of Inorganic Materials), 2007, 22(2):323-327.
[3]张利民,张波萍,李敬锋, 等. 稀有金属材料与工程, 2007, 36(s1):509-512.
[4]Hiruma Y, Nagata H, Takenaka T. Jpn. J. Appl. Phys., 2006, 45(9B):7409-7412.
[5]孙 勇, 肖定全, 吴 浪, 等. 功能材料, 2007, 38(8):1225-1228.
[6]Du H L, Tang F S, Liu D J, et al. Mater. Sci. Eng. B, 2007, 136(2/3):165-169.
[7]Zhang S J, Xia R, Shrout TR, et al. J. Appl. Phys., 2006, 100(10):104108-1-6.
[8]Ringgaard E, Wurlitzer T. J. Eur. Ceram. Soc., 2005, 25(12): 2701-2706.
[9]Maeder M D, Damjanovic D, Setter N. J. Electroceram., 2004, 13(1/2/3): 385-392.
[10]Cheng J, Li N, Cross L E. J. Appl. Phys., 2003, 94(8): 5153-5157.
[11]张 琼, 苗鸿雁, 谈国强. 硅酸盐通报, 2007, 26(1):118-122.
[12]路朋献, 王改民, 马秋花, 等. 中国陶瓷, 2006, 42(6):18-20.
[13]Zuo R Z, Ye C, Fang X S. J. Phys. Chem. Solids, 2008, 69(1): 230-235.
[14]Wu J G, Xiao D Q, Wang Y Y, et al. J. Appl. Phys., 2007, 102(11):114113-1-5.
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