Influence of BLT content on phase structure and electrical properties of (1-x)BT-xBLT ceramic
Keywords:BT-BLT, Ferroelectric properties, Dielectric properties, Hysteresis loop
Abstract(1-x)BaTiO3-x(Bi3.25La0.75)Ti3O12; (1-x)BT-xBLT ceramics with x = 0-0.20 wt.% were prepared by a solid-state reaction method. The BaTiO3 (BT) and (Bi3.25La0.75)Ti3O12 (BLT) powders were, respectively, calcined at 1100Â°C and 750Â°C for 4 h. The (1-x)BT-xBLT samples were sintered between 1250Â°C and 1350Â°C. The structure exhibited a transformation from tetragonal to orthorhombic with increasing in BLT contents. The average grain size increased with increasing BLT contents. The maximum density and relative density about 6.19 Â± 0.07 g/cm3and 99.3% were obtained for the composition of 0.95BT-0.05BLT. The Curie temperature (Tc) continuously decreased with increase in BLT contents. The dielectric constant showed a broad peak and pronounced dependence on frequency, which implied an existence of the relaxor behavior. The hysteresis parameters such as saturation polarization (Ps~18.06 mC/cm2), remanent polarization (Pr~12.64 mC/cm2) and coercive field (Ec~11.09 kV/cm) can be improved when BLT content is increased to 0.05 wt.%.
S. B. Deshpande, P. D. Godbole, Y. B. Khollam, and H. S. Potdar, “Characterization of barium titanate: BaTiO3 (BT) ceramics prepared from sol-gel derived BT powders,” Journal of Electroceramics, vol. 15, pp. 103– 108, 2005.  T. Ramoška, J. Banys, R. Sobiestianskas, M. Vijatović Petrović, J. Bobić, and B. Stojanović, “Dielectric investigations of Ladoped barium titanate,” Processing and Application of Ceramics, vol. 4, pp. 193–198, 2010.
J. Zhu, C. Jin, W. Cao, and X. Wang, “Phase transition and dielectric properties of nanograin BaTiO3 ceramic under high pressure,” Applied Physics Letters, vol. 92, pp. 1-3, 2008.
M. Ganguly, S. K. Rout, C. W. Ahn, I. W. Kim, and K. Manoranjan, “Structural, electrical and optical properties of Ba(Ti1−xYb4x/3)O3 ceramics,” Ceramics International, vol. 39, pp. 9511–9524, 2013.
S. Garcia, R. Font, J. Portelles, R. J. Quinones, J. Heiras, and J. M. Siqueiros, “Effect of Nb doping on (Sr,Ba)TiO3 (BST) ceramic samples,” Journal of Electroceramics, vol. 6, pp. 101–108, 2001.
M. Aparna, T. Bhimasankaram, S. V. Suryanarayanan, G. Prasad, and G. S. Kumar, “Effect of lanthanum doping on electrical and electromechanical properties of BaTiO3,” Bulletin of Materials Science, vol. 24, pp. 497–504, 2001.
S. Chandarak, A. Ngamjarurojana, S. Srilomsak, P. Laoratanakul, S. Rujirawat, and R. Yimnirun, “Dielectric Properties of BaTiO3-Modified BiFeO3 Ceramics,” Ferroelectrics, vol. 410, pp. 75–81, 2011.
P. Ren, X. Wang, H. Fan, Y. Ren, and G. Zhao, “Structure, relaxation behaviours and nonlinear dielectric properties of BaTiO3– Bi(Ti0.5Mg0.5) O3 ceramics,” Ceramics International, vol. 41, pp. 7693–7697, 2015.
F. Si, T. Bin, Z. Fang, and S. Zhang, “Nb-doped 0.8BaTiO3-0.2Bi(Mg0.5Ti0.5)O3 ceramics with stable dielectric properties at high temperature,” Crystals, vol. 7, pp. 168, 2017.
P. K. Patel, J. Rani, N. Adhlakha, H. Singh, and K. L. Yadav, “Enhanced dielectric properties of doped barium titanate ceramics,” Journal of Physics and Chemistry of Solids, vol. 74, pp. 545–549, 2013.
G. Yao, X. Wang, Y. Yang, and L. Li, “Effects of Bi2O3 and Yb2O3 on the Curie temperature in BaTiO3-based ceramics,” Journal of the American Ceramic Society, vol. 93, pp. 1697–1701, 2010.
A. G. Murillo, F. J. C. Romo, M. G. Hernandez, J. R. Salgado, M. A. D. Crespo, S. A. P. Sanchez, and H. Terrones, “Structural and morphological characteristics of polycrystalline BaTiO3: Er3+, Yb3+ceramics synthesized by the sol–gel route: influence of chelating agents,” Journal of Sol-Gel Science and Technology, vol. 53, pp. 121–133, 2010.
J. Y. Han, and C. W. Bark. “Influence of calcination temperature on the structure and optical properties of Bi3.25La0.75Ti3O12 powders,” Journal of the Korean Physical Society, vol. 65, pp. 216-221, 2014.
J. Liu, and Z. Shen, “Dielectric, piezoelectric, and ferroelectric properties of grain orientated Bi3.25La0.75Ti3O12 ceramics,” Journal of Applied Physics, vol. 102, pp. 104- 107, 2007.
S. Ma, X. Cheng, J. Hao, W. Li, R. Chu, and Z. Xu, “Dielectric and ferroelectric properties of Ta-modified Bi3.25La0.75Ti3O12 ceramics,” Ceramics International, vol. 43, pp. 13193– 13198, 2017.
J. H. Park, J. S. Bae, B. C. Choi, and J. H. Jeong, “Impedance spectroscopy of Bi3.25La0.75Ti3O12 ceramics above and below ferroelectric transition temperatures,” Journal of Physics D: Applied Physics, vol. 40, pp. 579–583, 2007.
J. H. Park, J. S. Bae, B. C. Choi, and J. H. Jeong, “Effect of Nb doping of ferroelectric properties of Bi3.25La0.75Ti3O12 ceramics,” Journal of Applied Physics, vol. 97, pp. 064110, 2005.
J. Li, P. Li, G. Zhang, J. Yu, Y. Wu, and X. Wen, “The thickness effect of Bi3.25La0.75Ti3O12 buffer layer in PbZr0.58Ti0.42O3/Bi3.25La0.75Ti3O12 (PZT/BLT) multilayered ferroelectric thin films,” Thin Solid Films, vol. 519, pp. 6021–6025, 2011.
H. Xinyou, G. Chunhua, C. Xhigang, and L. Huiping, “Influence of composition on properties of BNT-BT lead-free piezoceramics,” Journal of Rare Earths, vol. 24, pp. 321-324, 2006.
J. Li, F. Wang, C. M. Leung, S. W. Or, Y. Tang, X. Chen, T. Wang, X. Qin, and W. Shi, “Large strain response in acceptor- and donordoped Bi0.5Na0.5TiO3-based lead-free ceramics,” Journal of Materials Science, vol. 46, pp. 5702–5708, 2011.
R. Sumang, T. Bongkarn, N. Kumar, and M. Kamnoy, “Investigation of a new lead-free (1-x-y)BNT-xBKT-yBZT piezoelectric ceramics,” Ceramics International, vol. 43, pp. 102–109, 2017.
B. Jaffe, W. R. Cook, and H. Jaffe, Piezoelectric Ceramics, London: Academic Press, 1971.
M. Cernea, G. Poli, G. V. Aldica, C. Berbecaru, B. S. Vasile, and C. Galassi, “Preparation and properties of nanocrystalline BNT-BT x piezoelectric ceramics by sol-gel and spark plasma sintering,” Current Applied Physics, vol. 12, pp. 1100-1105, 2012.
J. Y. Han, and C. W. Bark, “Tunable band gap of iron-doped lanthanum-modified bismuth titanate synthesized by using the thermal decomposition of a secondary phase,” Journal of the Korean Physical, vol. 66, pp. 1371-1375, 2015.
E. Mostafavi, and A. Ataie, “Fabrication and characterization of nanostructured Ba-doped BiFeO3 porous ceramics,” Materials Science-Poland, vol. 34, pp. 148-156, 2016.
Y. Tan, J. Zhang, Y. Wu, C. Wang, V. Koval, B. Shi, H. Ye, R. McKinnon, G. Viola, and H. Yan, “Unfolding grain size effects in barium titanate ferroelectric ceramics,” Scientific Reports, vol. 5, pp. 1-9, 2015.
H. B. Sharma, R. P. Tandon, A. Mansingh, and R. Rup. “Dielectric and piezoelectric properties of sol-gel-derived barium titanate ceramics,” Journal of Materials Science Letters, vol. 12, pp. 1795-1796, 1993.
E. Mostafavi, A. Ataie, M. Ahmadzadeh, M. Palizdar, T. P. Comyn, and A. J. Bell, “Synthesis of nano-structured Bi1-xBaxFeO3 ceramics with enhanced magnetic and electrical properties,” Materials Chemistry and Physics, vol. 163, pp. 106-112, 2015.
H. Maiwa, “Electrocaloric Properties of (Pb,La)(Zr,Ti)O3 and BaTiO3 Ceramics,” in Advanced Ceramic Processing, A. M. A. Mohamed, Eds., United Kingdom: IntechOpen, 2015, pp. 139-150.
W. Yunyi, Y. Jun, Z. Duanming, Z. Chaodan, Y. Bin, and W. Yunbo, “Effect of bismuth excess on the crystallization of Bi3.25La0.75Ti3O12 ceramic and thin Film,” Integrated Ferroelectrics, vol. 98, pp. 11–25, 2008.
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