Effect of A-site off-stoichiometry on the microstructural, structural, and electromechanical properties of lead-free tetragonal 0.80Na 0.5 Bi 0.5 TiO 3 –0.20BaTiO 3 (NBT–20BT) piezoceramic
作者： Arnab De , Anupam Mishra , Gobinda Das Adhikary , Getaw Abebe , Getaw Abebe
DOI: 10.1007/S10854-021-05895-6
关键词:
摘要: A-site off-stoichiometry has been an efficient method to enhance the electromechanical properties of lead-free Na0.5Bi0.5TiO3(NBT)-based piezoceramics. In this work, we have reported effect Na/Bi on microstructural, structural, and tetragonal 0.80Na0.5Bi0.5TiO3–0.20BaTiO3 (NBT–20BT) ceramic. The maximum piezoresponse ~ 115 pC/N is obtained for 4 mol% Na-deficient (20BT–Na46) 2 mol% Bi-excess (20BT–Bi52) compositions. It a 25% increment over piezoresponse stoichiometric composition (20BT–Na50 ~ 90 pC/N). enhancement in attributed optimized presence polar-structural heterogeneity/disorder poled ceramic matrix distortion long-range ferroelectric phase. established that influencing lattice via grain size.
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sci-hub.st 参考文章(73)
Piezoelectric transducers and applications Springer-Verlag. ,(2004) , 10.1007/978-3-540-77508-9
AM Balagurov, E Yu Koroleva, AA Naberezhnov, VP Sakhnenko, BN Savenko, NV Ter-Oganessian, SB Vakhrushev, None, The rhombohedral phase with incommensurate modulation in Na1/2Bi1/2TiO3 Phase Transitions. ,vol. 79, pp. 163- 173 ,(2006) , 10.1080/01411590500496238
Richard Beanland, Pam A. Thomas, Symmetry and defects in rhombohedral single-crystalline Na 0.5 Bi 0.5 TiO 3 Physical Review B. ,vol. 89, pp. 174102- ,(2014) , 10.1103/PHYSREVB.89.174102
Yuji Hiruma, Yoshitaka Imai, Yoshinori Watanabe, Hajime Nagata, Tadashi Takenaka, Large electrostrain near the phase transition temperature of (Bi0.5Na0.5)TiO3-SrTiO3 ferroelectric ceramics Applied Physics Letters. ,vol. 92, pp. 262904- ,(2008) , 10.1063/1.2955533
John E. Daniels, Wook Jo, Jürgen Rödel, Jacob L. Jones, Electric-field-induced phase transformation at a lead-free morphotropic phase boundary: Case study in a 93%(Bi0.5Na0.5)TiO3–7% BaTiO3 piezoelectric ceramic Applied Physics Letters. ,vol. 95, pp. 032904- ,(2009) , 10.1063/1.3182679
M. Muthuramalingam, D.E. Jain Ruth, M. Veera Gajendra Babu, N. Ponpandian, D. Mangalaraj, B. Sundarakannan, Isothermal grain growth and effect of grain size on piezoelectric constant of Na0.5Bi0.5TiO3 ceramics Scripta Materialia. ,vol. 112, pp. 58- 61 ,(2016) , 10.1016/J.SCRIPTAMAT.2015.09.011
Yan Sun, Shu-Chun Wu, Mazhar N. Ali, Claudia Felser, Binghai Yan, Prediction of Weyl semimetal in orthorhombic MoTe2 Physical Review B. ,vol. 92, pp. 1- 7 ,(2015) , 10.1103/PHYSREVB.92.161107
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
X. Q. Ma, Z. H. Xiao, P. P. Wu, J. X. Zhang, S. Q. Shi, L. Q. Chen, Current-induced magnetization dynamics in Co∕Cu∕Co nanopillars Journal of Applied Physics. ,vol. 103, pp. 1- 3 ,(2008) , 10.1063/1.2838317
P. K. Panda, B. Sahoo, PZT to Lead Free Piezo Ceramics: A Review Ferroelectrics. ,vol. 474, pp. 128- 143 ,(2015) , 10.1080/00150193.2015.997146