TY - JOUR
T1 - Ultralow dielectric loss of BiScO3-PbTiO3 ceramics by Bi(Mn1/2Zr1/2)O3 modification
AU - Yu, Yang
AU - Yang, Jikun
AU - Wu, Jingen
AU - Gao, Xiangyu
AU - Bian, Lang
AU - Li, Xiaotian
AU - Xin, Xudong
AU - Yu, Zhonghui
AU - Chen, Wanping
AU - Dong, Shuxiang
N1 - Funding Information:
The authors gratefully acknowledge the support of the National Natural Science Foundation of China (Grant No. 51772005 and 51705373 ).
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/7
Y1 - 2020/7
N2 - BiScO3-PbTiO3 ceramics are attractive for high-temperature piezoelectric applications while their high dielectric loss has to be substantially reduced. In this paper, a ternary perovskite system of xBi(Mn1/2Zr1/2)O3-(1-x-y)BiScO3-yPbTiO3 (abbreviated as xBMZ-BS-yPT) with x = 0.02, 0.04 and y = 0.62–0.67 were fabricated by conventional solid-phase method, and their ceramics were systematically studied with regards to phase structure, microstructure, dielectric and piezoelectric properties. X-ray diffraction results indicate a gradual change from rhombohedral to tetragonal phase with increasing PT composition. Morphotropic phase boundary (MPB) is revealed for the system with x = 0.02, y = 0.64, at which ultralow dielectric loss factor (0.58 %), almost unchanged Curie temperature (449 °C), high electromechanical properties (d33 = 360 pC/N, kp = 0.53), and stable strain output below 200 °C are observed. With such excellent piezoelectric properties and high-temperature stability, BMZ modified BS-PT ceramics are promising candidates for power electromechanical devices, especially operating in high-temperature environments.
AB - BiScO3-PbTiO3 ceramics are attractive for high-temperature piezoelectric applications while their high dielectric loss has to be substantially reduced. In this paper, a ternary perovskite system of xBi(Mn1/2Zr1/2)O3-(1-x-y)BiScO3-yPbTiO3 (abbreviated as xBMZ-BS-yPT) with x = 0.02, 0.04 and y = 0.62–0.67 were fabricated by conventional solid-phase method, and their ceramics were systematically studied with regards to phase structure, microstructure, dielectric and piezoelectric properties. X-ray diffraction results indicate a gradual change from rhombohedral to tetragonal phase with increasing PT composition. Morphotropic phase boundary (MPB) is revealed for the system with x = 0.02, y = 0.64, at which ultralow dielectric loss factor (0.58 %), almost unchanged Curie temperature (449 °C), high electromechanical properties (d33 = 360 pC/N, kp = 0.53), and stable strain output below 200 °C are observed. With such excellent piezoelectric properties and high-temperature stability, BMZ modified BS-PT ceramics are promising candidates for power electromechanical devices, especially operating in high-temperature environments.
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U2 - 10.1016/j.jeurceramsoc.2020.02.015
DO - 10.1016/j.jeurceramsoc.2020.02.015
M3 - Article
AN - SCOPUS:85079276087
SN - 0955-2219
VL - 40
SP - 3003
EP - 3010
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 8
ER -