Abstract
Lead-free piezoelectric 0.97(Bi0.5Na0.5Ti1−x Nb x )O3-0.03BaZrO3 (BNT-BZ3) ceramics (x = 0 ~ 0.03) were prepared by a conventional solid-state reaction method. X-ray diffraction patterns revealed the formation of single-phase perovskite structure with x ≤ 0.015. The depolarization temperature and the dielectric constant decreased with increasing Nb content. The remanent polarization (Pr) and the piezoelectric constant (d33) increased from 28 μC/cm2 and 98 pC/N for x = 0 to 31 μC/cm2 and 128 pC/N for x = 0.005, respectively. In addition, the electric field induced strain was enhanced with a maximum value S max = 0.17% with a normalized piezoelectric coefficient of d*33 = 283 pm/V at an applied electric field of 6 kV/mm for x = 0.015.
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Rahman, J.U., Hussain, A., Maqbool, A. et al. Effect of donor doping on the ferroelectric and the piezoelectric properties of lead-free 0.97(Bi0.5Na0.5Ti1−x Nb x )O3-0.03BaZrO3 ceramics. Journal of the Korean Physical Society 67, 1240–1245 (2015). https://doi.org/10.3938/jkps.67.1240
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DOI: https://doi.org/10.3938/jkps.67.1240