TY - JOUR
T1 - Crystal structure and piezoelectric properties of xPb(Mn1/3Nb2/3)O3-(0.2 - x)Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr0.52Ti0.48)O3 ceramics
AU - Gao, Feng
AU - Cheng, Li hong
AU - Hong, Rong zi
AU - Liu, Jiaji
AU - Wang, Chun juan
AU - Tian, Changsheng
PY - 2009/7
Y1 - 2009/7
N2 - Pb(Mn1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3-Pb(Zr0.52Ti0.48)O3 (designated as PMnN-PZN-PZT) piezoelectric ceramics were prepared and the effects of PMnN content on the crystal structure and electrical properties were investigated. The results show that the pure perovskite phase forms in these ceramics. The crystal structure changes from tetragonal to rhombohedral and the lattice constant decreases with increase of PMnN content. The morphotropic phase boundary (MPB) of xPMnN-(0.2 - x)PZN-0.8PZT ceramics occurs where the content of PMnN, x, lies between 0.05 and 0.085 mol. The dielectric constant (ε), piezoelectric constant (d33) and Curie temperature (Tc) decrease, while the mechanical quality factor (Qm) increases with the increase of PMnN content. The ceramic with composition 0.075PMnN-0.125PZN-0.8PZT has the optimal piezoelectric properties, ε is 842, d33 is 215 pC/N, Tc is 320 °C, kp is 0.57 and Qm amounts to 1020, which makes it a promising material for high power piezoelectric devices.
AB - Pb(Mn1/3Nb2/3)O3-Pb(Zn1/3Nb2/3)O3-Pb(Zr0.52Ti0.48)O3 (designated as PMnN-PZN-PZT) piezoelectric ceramics were prepared and the effects of PMnN content on the crystal structure and electrical properties were investigated. The results show that the pure perovskite phase forms in these ceramics. The crystal structure changes from tetragonal to rhombohedral and the lattice constant decreases with increase of PMnN content. The morphotropic phase boundary (MPB) of xPMnN-(0.2 - x)PZN-0.8PZT ceramics occurs where the content of PMnN, x, lies between 0.05 and 0.085 mol. The dielectric constant (ε), piezoelectric constant (d33) and Curie temperature (Tc) decrease, while the mechanical quality factor (Qm) increases with the increase of PMnN content. The ceramic with composition 0.075PMnN-0.125PZN-0.8PZT has the optimal piezoelectric properties, ε is 842, d33 is 215 pC/N, Tc is 320 °C, kp is 0.57 and Qm amounts to 1020, which makes it a promising material for high power piezoelectric devices.
KW - C. Electrical properties
KW - Curie temperature
KW - Lattice structure
KW - Piezoelectric ceramic
UR - http://www.scopus.com/inward/record.url?scp=67349126524&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2008.09.001
DO - 10.1016/j.ceramint.2008.09.001
M3 - 文章
AN - SCOPUS:67349126524
SN - 0272-8842
VL - 35
SP - 1719
EP - 1723
JO - Ceramics International
JF - Ceramics International
IS - 5
ER -