TY - JOUR
T1 - Piezoelectric properties of PbHfO 3-PbTiO 3-Pb(Mg 1/3Nb 2/3)O 3 ternary ceramics
AU - Wang, Dawei
AU - Cao, Maosheng
AU - Zhang, Shujun
PY - 2012/3
Y1 - 2012/3
N2 - (1 - x)Pb(Hf 1-yTi y)O 3-x Pb(Mg 1/3Nb 2/3)O 3 (x = 0.1 ∼ 0.25, y = 0.555) ternary piezoelectric ceramics were prepared using the two-step precursor method. Morphotropic phase boundary (MPB) compositions, located at x = 0.18 ∼ 0.22, were confirmed using X-ray diffraction and by their dielectric, piezoelectric and ferroelectric properties. The optimum dielectric and piezoelectric properties were achieved for the MPB composition 0.8Pb(Hf 0.445Ti 0.555)O 3-0.2Pb(Mg 1/3Nb 2/3)O 3, with dielectric permittivity ε r, piezoelectric coefficient d 33, planar electromechanical coupling k p and Curie temperature T C being on the order of 2800, 680 pC/N, 70% and 276 °C, respectively. Of particular significance is that the new ternary ceramics exhibit comparable piezoelectric and electromechanical properties to commercial PZT5H ceramics, but with much improved T C, showing a potential for applications at elevated temperature.
AB - (1 - x)Pb(Hf 1-yTi y)O 3-x Pb(Mg 1/3Nb 2/3)O 3 (x = 0.1 ∼ 0.25, y = 0.555) ternary piezoelectric ceramics were prepared using the two-step precursor method. Morphotropic phase boundary (MPB) compositions, located at x = 0.18 ∼ 0.22, were confirmed using X-ray diffraction and by their dielectric, piezoelectric and ferroelectric properties. The optimum dielectric and piezoelectric properties were achieved for the MPB composition 0.8Pb(Hf 0.445Ti 0.555)O 3-0.2Pb(Mg 1/3Nb 2/3)O 3, with dielectric permittivity ε r, piezoelectric coefficient d 33, planar electromechanical coupling k p and Curie temperature T C being on the order of 2800, 680 pC/N, 70% and 276 °C, respectively. Of particular significance is that the new ternary ceramics exhibit comparable piezoelectric and electromechanical properties to commercial PZT5H ceramics, but with much improved T C, showing a potential for applications at elevated temperature.
KW - Ceramics
KW - Dielectrics
KW - Ferroelectrics
KW - Phase boundary compositions
KW - Piezoelectrics
UR - https://www.scopus.com/pages/publications/84863133701
U2 - 10.1002/pssr.201206015
DO - 10.1002/pssr.201206015
M3 - Article
AN - SCOPUS:84863133701
SN - 1862-6254
VL - 6
SP - 135
EP - 137
JO - Physica Status Solidi - Rapid Research Letters
JF - Physica Status Solidi - Rapid Research Letters
IS - 3
ER -