TY - JOUR
AU - Shi, Wangzhou
AB - Phase transition and electrical properties were demonstrated for a Li-modified Bi0.5Na0.5TiO3-based solid solution. (0.935 − x)Bi0.5Na0.5TiO3 − xBi0.5Li0.5TiO3 − 0.065BaTiO3 with 0.5 mol% Mn doping was prepared by a conventional solid state reaction method. Close inspection of X-ray diffraction patterns indicated that no characteristic peaks splitting happened, indicating the pseudocubic structure for all the compositions. At a critical composition x of 0.06, optimized performance was obtained with piezoelectric constant d
33 of 176 pC/N, electromechanical coupling factors k
P of 0.33, and k
t of 0.52, respectively. In addition, it was found that the Li substitution could lead to a disruption of long-range ferroelectric order and obtain enhanced frequency dispersion behavior accompanied with the decreasing of the depolarization temperature T
d, which was responsible for the observed weaker ferroelectric polarization and electromechanical response. The composition induced structure evolution was also discussed combined with the Raman spectroscopy.
TI - Phase transition and electrical properties in the Li-modified Bi0.5Na0.5TiO3-based lead-free ceramics
JO - Journal of Materials Science
DO - 10.1007/s10853-011-6052-0
DA - 2011-10-27
UR - https://www.deepdyve.com/lp/springer-journals/phase-transition-and-electrical-properties-in-the-li-modified-bi0-5na0-2QtXD7WtkN
SP - 2352
EP - 2358
VL - 47
IS - 5
DP - DeepDyve
ER -