TY - JOUR
T1 - Dielectric and piezoelectric properties of manganese-modified PbHfO3-PbTiO3-Pb(Mg1/3Nb2/3)O3 ternary ceramics with morphotropic phase boundary compositions
AU - Wang, Dawei
AU - Cao, Maosheng
AU - Zhao, Quanliang
AU - Cui, Yan
AU - Zhang, Shujun
PY - 2013/3
Y1 - 2013/3
N2 - High piezoelectric and electromechanical properties were reported in the PbHfO3-PbTiO3-Pb(Mg1/3Nb2/3)O3 ternary system with morphotropic phase boundary (MPB) compositions. This work focuses on the effect of MnO2 addition on 0.8Pb(Hf0.443Ti0.557)O3-0.2PMN (0.8PHT-0.2PMN) ceramics. It was observed that the Mn acceptor modification induced a "hardening" effect in 0.8PHT-0.2PMN, with decreased piezoelectric coefficients d33 and dielectric loss tan δ and a significantly increased mechanical quality factor Qm. Moreover, the 0.2 wt% MnO2-doped 0.8PHT-0.2PMN ceramics exhibited good piezoelectric and electromechanical properties with d33, planar electromechanical coupling kp and Qm being on the order of 360 pC/N, 61% and 700, respectively, showing advantages compared to those of commercial hard PZT4 ceramics, which is attractive for high power applications.
AB - High piezoelectric and electromechanical properties were reported in the PbHfO3-PbTiO3-Pb(Mg1/3Nb2/3)O3 ternary system with morphotropic phase boundary (MPB) compositions. This work focuses on the effect of MnO2 addition on 0.8Pb(Hf0.443Ti0.557)O3-0.2PMN (0.8PHT-0.2PMN) ceramics. It was observed that the Mn acceptor modification induced a "hardening" effect in 0.8PHT-0.2PMN, with decreased piezoelectric coefficients d33 and dielectric loss tan δ and a significantly increased mechanical quality factor Qm. Moreover, the 0.2 wt% MnO2-doped 0.8PHT-0.2PMN ceramics exhibited good piezoelectric and electromechanical properties with d33, planar electromechanical coupling kp and Qm being on the order of 360 pC/N, 61% and 700, respectively, showing advantages compared to those of commercial hard PZT4 ceramics, which is attractive for high power applications.
KW - Dielectric properties
KW - Ferroelectric properties
KW - Morphotropic phase boundary
KW - Piezoelectric properties
UR - http://www.scopus.com/inward/record.url?scp=84874782362&partnerID=8YFLogxK
U2 - 10.1002/pssr.201206508
DO - 10.1002/pssr.201206508
M3 - Article
AN - SCOPUS:84874782362
SN - 1862-6254
VL - 7
SP - 221
EP - 223
JO - Physica Status Solidi - Rapid Research Letters
JF - Physica Status Solidi - Rapid Research Letters
IS - 3
ER -