The Study of Local Atomic Structure and Phase Transition with Effecting on Piezoelectric Property of (1-x)BNT-xBCST Ceramics by Using Synchrotron and Raman Spectroscopy Technique
Abstract
In this research, the study of the phase formation, the local atomic structure and phase transition on piezoelectric property of (1-x)BNT-xBCST solid solutions at various of x content prepared via the solid state combustion technique, using glycine as fuel, were studied. The study results, it was found that (1-x) BNT-xBCST ceramics exhibited a single perovskite structure with the co-existence of the rhombohedral and tetragonal phases. Then, it was observed that the concentration of BCST compound with increasing of x affected the Ti atom position which led to change phase formation. From the Raman spectroscopy result, it can be see that the Raman spectrum can confirmed the co-existence of the rhombohedral and tetragonal phases at x = 0.04. When x content over 0.04, the ceramics showed higher tetragonal phase. The piezoelectric coefficient (d33) increases when x content increases up to 0.07 and then decreased. At x content of 0.07, the sample has the highest density (5.93 g / cm3) and the highest d33 (202 pC/N). Keywords : (1-x)BNT-xBCST ; solid state combustion technique ; phase formation ; local structure ; piezoelectric propertyReferences
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Bootchanonta, A., timoosika, J., Chandarak, S., Unruan, M., Kidkhunthod, P., Klysubun, W., Rujirawat, S., Yimnirun, R., Guo, R. & Bhalla, A. (2014) Synchrotron X-ray absorption spectroscopy study of local structure transformation behavior in perovskite Ba(Ti,Zr)O3 system, Journal of Alloys and Compound,
616, 430.
Gou, Q., Wu, JG., Li, AG., Wu, B., Xiao, D.G. & Hu JG. (2012) Enhanced d33 value of Bi0.5Na0.5TiO3-(Ba0.85Ca0.15)(Ti0.90Zr0.10)O3 lead-free ceramics. Journal of Alloys and Compounds, 521, 4-7.
Kornphom, C., Rittisak, J., Laowanidwatana, A. & Bongkarn, T. (2018) Enhanced dielectric and ferroelectric behavior in 0.94BNT-0.06BCTS lead free piezoelectric ceramics synthesized by the solid state combustion technique, Integrated Ferroelectrics, 187, 20-32.
Levin, I., Cockayne, E., Krayzman, V.,. Woicik, C.J., Lee, S. & Randall, A.C.(2011) Local structure of Ba(Ti,Zr)O3 perovskite-like solid solutions and its relation to the band-gap behavior. Physica Review B, 83, 094122.
Li, Y.M., Chen, W., Zhou. J., Xu, Q., Sun, H.J. & Liao, M.S. (2005) Dielectric and ferroelectric properties of lead-free Na0.5Bi0.5TiO3–K0.5Bi0.5TiO3 ferroelectric ceramics, Ceramics International, 31(1), 139-142.
Li, S., Chen, L., Ning, X., Guo, M., & Zhang, M. (2015) (1-x)(Bi0.5Na0.5) TiO3-x(K0.5Na0.5)TiO3 ceramics with low coercive field preparation from hydrothermally synthesized precursor powders. Ceramics International, 41, 195-204.
Niranjan, M. K., Karthik, T., Asthana, S., Pan, J. & Waghmare, U. V. (2013) Theoretical and experimental investigation of Raman modes, ferroelectric and dielectric properties of relaxor Na0.5Bi0.5TiO3. Journal of Applied Physics,113, 194106.
Pan, H., Hou, Y.T., Chao, XL., Wei, L.L. & Yang Z P. (2011) Microstructure and electrical properties of La2O3-doped Bi0.5(Na0.68K0.22Li0.1)0.5TiO3 lead-free piezoelectric ceramics. Current Applied Physics, 11, 888-892.
Wu, B., Xiao, Q.D., Wu, J.W., Zhu, G., Chen, Q.J. & Wu, G. J. (2012) Microstructure and electrical properties of (Ba0.98Ca0.02)(Ti0.94Sn0.06)O3-modified Bi0.51Na0.50TiO3 lead-free ceramics. Ceramics Internation, 38, 5677.
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Published
2022-01-10
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