Structure evolution and electrical properties of lead-free Bi0.5Na0.41K0.09TiO3 piezoceramics by isovalent La doping
作者： Vu Diem Ngoc Tran , Thi Hinh Dinh , Ky Nam Pham , Nguyen Ba Hung , Vinh Le Van
DOI: 10.1007/S10854-020-05179-5
关键词:
摘要: This study investigated the structure evolution, surface morphology, dielectric properties, ferroelectric piezoelectric and electromechanical strain properties of lead-free (Bi0.5−xLax)(Na0.41K0.09)TiO3 ceramics. All samples were fabricated by a traditional solid-state synthesis. The effects La3+-isovalent substituted on Bi3+-site Bi0.5Na0.41K0.09TiO3 system examined. addition La doping in ceramics induced second phase K4Ti3O8 crystal structural change from rhombohedral tetragonal to pseudocubic phase. show similar grain morphology dense microstructure with average size around 1.33 1.61 μm. curves field-induced polarization loops confirm nonergodic-to-ergodic relaxor transformation, corresponding reduction temperature at transition disruption happened when increasing La3+ content. Besides, maximum constant 139 pC/N was found (Bi0.48La0.02)(Na0.41K0.09)TiO3 ceramic, while (Bi0.46La0.04)(Na0.41K0.09)TiO3 ceramic shows of ~ 0.2% low field 40 kV/cm.
springer.com
scilit.net参考文章(44)
Marianne Hammer, Michael J. Hoffmann, Detailed X-ray Diffraction Analyses and Correlation of Microstructural and Electromechanical Properties of La-doped PZT Ceramics Journal of Electroceramics. ,vol. 2, pp. 75- 84 ,(1998) , 10.1023/A:1009954822076
Renfei Cheng, Zhijun Xu, Ruiqing Chu, Jigong Hao, Juan Du, Guorong Li, Electric field-induced ultrahigh strain and large piezoelectric effect in Bi1/2Na1/2TiO3-based lead-free piezoceramics Journal of The European Ceramic Society. ,vol. 36, pp. 489- 496 ,(2016) , 10.1016/J.JEURCERAMSOC.2015.09.043
Wook Jo, Torsten Granzow, Emil Aulbach, Jürgen Rödel, Dragan Damjanovic, Origin of the large strain response in (K0.5Na0.5)NbO3-modified (Bi0.5Na0.5)TiO3―BaTiO3 lead-free piezoceramics Journal of Applied Physics. ,vol. 105, pp. 094102- ,(2009) , 10.1063/1.3121203
George A Samara, The relaxational properties of compositionally disordered ABO3 perovskites Journal of Physics: Condensed Matter. ,vol. 15, ,(2003) , 10.1088/0953-8984/15/9/202
Suchuan Zhao, Guorong Li, Aili Ding, Tianbao Wang, Qingrui Yin, Ferroelectric and piezoelectric properties of (Na, K)0.5Bi0.5TiO3 lead free ceramics Journal of Physics D. ,vol. 39, pp. 2277- 2281 ,(2006) , 10.1088/0022-3727/39/10/042
Kazushige Yoshii, Yuji Hiruma, Hajime Nagata, Tadashi Takenaka, Electrical Properties and Depolarization Temperature of (Bi1/2Na1/2)TiO3–(Bi1/2K1/2)TiO3 Lead-free Piezoelectric Ceramics Japanese Journal of Applied Physics. ,vol. 45, pp. 4493- 4496 ,(2006) , 10.1143/JJAP.45.4493
Rajeev Ahluwalia, Turab Lookman, Avadh Saxena, Wenwu Cao, Domain-size dependence of piezoelectric properties of ferroelectrics Physical Review B. ,vol. 72, pp. 014112- ,(2005) , 10.1103/PHYSREVB.72.014112
C.R. Zhou, X.Y. Liu, W.Z. Li, C.L. Yuan, Dielectric relaxor behavior of A-site complex ferroelectrics of Bi0.5Na0.5TiO3–Bi0.5K0.5TiO3–BiFeO3 Solid State Communications. ,vol. 149, pp. 481- 485 ,(2009) , 10.1016/J.SSC.2008.12.034
Ralf Theissmann, Ljubomira A. Schmitt, Jens Kling, Roland Schierholz, Kristin A. Schönau, Hartmut Fuess, Michael Knapp, Hans Kungl, Michael J. Hoffmann, Nanodomains in morphotropic lead zirconate titanate ceramics : on the origin of the strong piezoelectric effect Journal of Applied Physics. ,vol. 102, pp. 024111- ,(2007) , 10.1063/1.2753569
Robert Dittmer, Wook Jo, Jürgen Rödel, Sergei Kalinin, Nina Balke, Nanoscale Insight Into Lead-Free BNT-BT-xKNN Advanced Functional Materials. ,vol. 22, pp. 4208- 4215 ,(2012) , 10.1002/ADFM.201200592