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http://dx.doi.org/10.4191/kcers.2014.51.6.527

Effects of A-site Vacancies on the Piezoelectric Properties of 0.97Bi0.5+x(Na0.78K0.22)0.5-3xTiO3-0.03LaFeO3 Lead-free Piezoelectric Ceramics  

Park, Jung Soo (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Lee, Ku Tak (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Cho, Jeong Ho (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Jeong, Young Hun (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Paik, Jong Hoo (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Yun, Ji Sun (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.51, no.6, 2014 , pp. 527-532 More about this Journal
Abstract
$0.97Bi_{0.5+x}(Na_{0.78}K_{0.22})_{0.5-3x}TiO_3-0.03LaFeO_3$ lead-free piezoelectric ceramics were fabricated by a solid state reaction method. $LaFeO_3$ additives were added to $Bi_{0.5}(Na_{0.78}K_{0.22})_{0.5}TiO_3$ for volatile compensation of bismuth and sodium ions in the sintering process. To create A-site vacancies, the mole ratio and charge valence of A-site ions ($Bi^{3+}$, $Na^+$ and $K^+$) were controlled. The improved piezoelectric properties were observed by addition of $LaFeO_3$ and control of A-site vacancies. In particular, a $d_{33}^*(S_{max}/E_{max})$ value of 614pm/V and an electric field induced strain of 0.33% was observed in $0.97Bi_{0.505}(Na_{0.78}K_{0.22})_{0.485}TiO_3-0.03LaFeO_3$ ceramic.
Keywords
BNKT; A-site vacancy; $LaFeO_3$; Dielectric function; Piezoelectric properties;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 D. Viehland and J. F. Li, "Investigations of ElectrostrictivePb$(Mg_{1/3}Nb_{2/3})O_3$-$PbTiO_3$ Ceramics under High-power Drive Conditions: Importance of Compositional Fluctuations on Residual Hysteresis," J. Appl. Phys., 89 [3] 1826-35 (2001).   DOI   ScienceOn
2 K. Shiratsuyu, K. Hayashi, A. Ando, and Y. Sakabe, "Piezoelectric Dharacteristic of Low Temperature Fired $Pb(Zr,Ti)O_3-Pb(Ni,Nb)O_3$ Ceramics," Jpn. J. Appl. Phys., 39 5609-13 (2000).   DOI
3 R. Sumang, N. Vittayakorn, and T. Bongkarn, "Crystal Structure, Microstructure and Electrical Properties of (1-x-y)$Bi_{0.5}Na_{0.5}TiO_3-xBi_{0.5}K_{0.5}TiO_3-yBiFeO_3$ Ceramics Near MPB Prepared via the Combustion Technique," Ceram. Int., 39 S409-13 (2013).   DOI
4 G. Du, R. Liang, J. Wang, L. Wang, W. Zhang, G. Wang, and X. Dong, "Evidence of Macro-micro Domain Transition in Poled PMN-PZT Ceramics," Ceram. Int., 39 [8] 9299-303(2013).   DOI
5 D. H. Lee, S. H. Lee, S. G. Lee, K. T. Lee, and Y. H. Lee, "Piezoelectric Properties of $0.98(Na_{0.5}K_{0.5})NbO_3$-0.02Li $(Sb_{0.17}Ta_{0.83})O_3$+0.01wt%ZnO Ceramics with a Sintering Temperature(in Korean)," J. Kieeme., 24 [7] 543-46 (2011).   과학기술학회마을   DOI
6 B. Wang, L. Luo, F. Ni, P. Du, W. Pi, and H. Chen, "Piezoelectric and Ferroelectric Properties of $(Bi_{1-x}Na_{0.8}K_{0.2}La_x)_{0.5}TiO_3$ Lead-free Ceramics," J. Alloys Compd., 526 79-84 (2012).   DOI
7 F. Ni, L. Luo, X. Pan, W. Li, and J. Q. Zhu, "Effects of A-site Vacancy on the Electrical Properties in Lead-free Nonstoichiometric Ceramics $Bi_{0.5+x}(Na_{0.82}K_{0.18})_{0.5-3x}TiO_3$ and $Bi_{0.5+y}(Na_{0.82}K_{0.18})_{0.5}TiO_3$," J. Alloys Compd., 541 150-56 (2012).   DOI
8 A. Hussain, C. W. Ahn, A. Ullah, J. S. Lee, and I. W. Kim, "Dielectric, Ferroelectric and Field-Induced Strain Behavior of $K_{0.5}Na_{0.5}NbO_3$-modified $Bi_{0.5}(Na_{0.78}K_{0.22})_{0.5}TiO_3$ Leadfree Ceramics," Ceram. Int., 38 [5] 4143-49 (2012).   DOI
9 Y. Zhang, A. L. Ding, P. S. Qiu, X. Y. He, X. S. Zheng, H. R. Zeng, and Q. R. Yin, "Effect of La Content on Characterization of PLZT Ceramics," Mater. Sci. Eng., B99 [1-3] 360-62 (2003).
10 K. N. Pham, T. H. Dinh, H. Y. Lee, Y. M. Kong and J. S. Lee, "Effects of $Bi(Mg_{1/2}Sn_{1/2})O_3$ Modification on the Dielectric and Piezoelectric Properties of $Bi_{1/2}(Na_{0.8}K_{0.2})_{1/2}TiO_3$Ceramics(in Korean)," J. Korean Ceram. Soc., 49 [3] 266-71 (2012).   과학기술학회마을   DOI
11 K. S. Lee and J. H. Koh, "Characterization of Ag doped $0.9(Na_{0.52}K_{0.48})NbO_3-0.1LiTaO_3$ Ceramics(in Korean)," J. Kieeme., 23 [7] 517-20 (2010).
12 N. B. Do, H. B. Lee, C. H. Yoon, J. K. Kang, J. S. Lee, and I. W. Kim, "Effect of Ta-Substitution on the Ferroelectric and Piezoelectric Properties of $Bi_{1/2}(Na_{0.82}K_{0.18})_{1/2}TiO_3$ Ceramics," Trans. Electr. Electron. Mater., 12 64-67 (2011).   과학기술학회마을   DOI
13 A. Hussain, C. W. Ahn, J. S. Lee, A. Ullah, and I. W. Kim, "Effects of Hafnium Substitution on Dielectric and Electromechanical Properties of Lead-free $Bi_{0.5}(Na_{0.78}K_{0.22}O_5(Ti_{1-x}Hf_x)O_3)$ Ceramics," Jpn. J. Appl. Phys., 49 041054 (2010).
14 Y. Zhang, A. L. Ding, P. S. Qiu, X. Y. He, X. S. Zheng, H. R. Zeng, and Q. R. Yin, "Effect of La Content on Characterization of PLZT Ceramics," Mater. Sci. Eng., B99 [1-3] 360-62 (2003).
15 A. Hussain, C. W. Ahn, J. S. Lee, A. Ullah, and I. W. Kim,"Large Electric-Field-Induced Strain in Zr-Modified Lead Free $Bi_{0.5}(Na_{0.78}K_{0.22})_{0.5}TiO_3$ Piezoelectric Ceramics," Sens. Actuators, A, 158 [1] 84-89 (2010).   DOI   ScienceOn
16 K. N. Pham, H. B. Lee, H. S. Han, J. K. Kang, J. S. Lee, A. Ullah, C. W. Ahn, and I. W. Kim, "Dielectric, Ferroelectric, and Piezoelectric Properties of Nb-Substituted $Bi_{1/2}(Na_{0.82}K_{0.18})_{1/2}TiO_3$ Lead-Free Ceramics," J. Kor. Phys. Soc., 60 [2] 207-11 (2012).   DOI