TY - JOUR
T1 - Ferroelectric, elastic, piezoelectric, and dielectric properties of Ba(Ti0.7Zr0.3)O3-x (Ba0.82Ca0.18)TiO3 Pb-free ceramics
AU - Yuan, Ruihao
AU - Xue, Deqing
AU - Zhou, Yumei
AU - Ding, Xiangdong
AU - Sun, Jun
AU - Xue, Dezhen
N1 - Publisher Copyright:
© 2017 Author(s).
PY - 2017/7/28
Y1 - 2017/7/28
N2 - We designed and synthesized a pseudo-binary Pb-free system, Ba(Ti0.7Zr0.3)O3-x(Ba0.82Ca0.18)TiO3, by combining a rhombohedral end (with only cubic to rhombohedral ferroelectric phase transition) and a tetragonal end (with only cubic to tetragonal ferroelectric phase transition). The established composition-temperature phase diagram is characterized by a tricritical point type morphotropic phase boundary (MPB), and the MPB composition has better ferroelectric, piezoelectric, and dielectric properties than the compositions deviating from MPB. Moreover, a full set of material constants (including elastic stiffness constants, elastic compliance constants, piezoelectric constants, dielectric constants, and electromechanical coupling factors) of the MPB composition are determined using a resonance method. The good piezoelectric performance of the MPB composition can be ascribed to the high dielectric constants, elastic softening, and large electromechanical coupling factor.
AB - We designed and synthesized a pseudo-binary Pb-free system, Ba(Ti0.7Zr0.3)O3-x(Ba0.82Ca0.18)TiO3, by combining a rhombohedral end (with only cubic to rhombohedral ferroelectric phase transition) and a tetragonal end (with only cubic to tetragonal ferroelectric phase transition). The established composition-temperature phase diagram is characterized by a tricritical point type morphotropic phase boundary (MPB), and the MPB composition has better ferroelectric, piezoelectric, and dielectric properties than the compositions deviating from MPB. Moreover, a full set of material constants (including elastic stiffness constants, elastic compliance constants, piezoelectric constants, dielectric constants, and electromechanical coupling factors) of the MPB composition are determined using a resonance method. The good piezoelectric performance of the MPB composition can be ascribed to the high dielectric constants, elastic softening, and large electromechanical coupling factor.
UR - http://www.scopus.com/inward/record.url?scp=85026518550&partnerID=8YFLogxK
U2 - 10.1063/1.4996353
DO - 10.1063/1.4996353
M3 - 文章
AN - SCOPUS:85026518550
SN - 0021-8979
VL - 122
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 4
M1 - 044105
ER -