TY - JOUR
T1 - Effects of Nb2O5 additive on the piezoelectric and dielectric properties of PHT-PMN ternary ceramics near the morphotropic phase boundary
AU - Wang, Dawei
AU - Li, Jinglin
AU - Cao, Maosheng
AU - Zhang, Shujun
PY - 2014/1
Y1 - 2014/1
N2 - Recently, a new family of piezoelectric perovskite materials, PbHfO 3-PbTiO3-Pb(Mg1/3Nb2/3)O 3 (PHT-PMN) ternary system was developed, possessing good piezoelectric properties and high Curie temperature near the morphotropic phase boundary (MPB). Nb2O5, as a donor dopant in the perovskite piezoelectric systems has been used to improve the dielectric and piezoelectric properties. In this work, the effect of Nb2O5 addition in the PHT-PMN ternary system was reported. It was found that Nb doping led to the change of phase structure for the PHT-PMN system. With the addition of Nb 2O5 content, the ferroelectric polarization was reduced, while the electric-field-induced strain and hysteresis were enhanced significantly. In particular, the 0.2 wt% Nb2O5-doped PHT-PMN exhibited the optimum piezoelectric and electromechanical properties, with d33 and kp being on the order of 670 pC N -1 and of 71%, respectively.
AB - Recently, a new family of piezoelectric perovskite materials, PbHfO 3-PbTiO3-Pb(Mg1/3Nb2/3)O 3 (PHT-PMN) ternary system was developed, possessing good piezoelectric properties and high Curie temperature near the morphotropic phase boundary (MPB). Nb2O5, as a donor dopant in the perovskite piezoelectric systems has been used to improve the dielectric and piezoelectric properties. In this work, the effect of Nb2O5 addition in the PHT-PMN ternary system was reported. It was found that Nb doping led to the change of phase structure for the PHT-PMN system. With the addition of Nb 2O5 content, the ferroelectric polarization was reduced, while the electric-field-induced strain and hysteresis were enhanced significantly. In particular, the 0.2 wt% Nb2O5-doped PHT-PMN exhibited the optimum piezoelectric and electromechanical properties, with d33 and kp being on the order of 670 pC N -1 and of 71%, respectively.
KW - PbHfO-PbTiO -Pb(MgNb)O
KW - dielectric properties
KW - ferroelectric properties
KW - piezoelectric properties
UR - http://www.scopus.com/inward/record.url?scp=84892938833&partnerID=8YFLogxK
U2 - 10.1002/pssa.201330203
DO - 10.1002/pssa.201330203
M3 - Article
AN - SCOPUS:84892938833
SN - 1862-6300
VL - 211
SP - 226
EP - 230
JO - Physica Status Solidi (A) Applications and Materials Science
JF - Physica Status Solidi (A) Applications and Materials Science
IS - 1
ER -