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- Title
Temperature-dependent electrical properties of 0.5Pb(NiNb)O-(0.5 − x)PbTiO- xPbZrO piezoceramics near the morphotropic phase boundary.
- Authors
Zhou, Jia-Jun; Wang, Ke; Li, Jing-Feng; Zhang, Xiao-Wen; Liu, Hong; Fang, Jing-Zhong
- Abstract
0.5Pb(NiNb)O-(0.5 − x)PbTiO- xPbZrO ( x = 0.10-0.20) polycrystalline ceramics were fabricated by solid-state reaction method. The phase structures, microstructure and temperature dependence of the electrical properties were investigated in detail. Both X-ray diffraction and Raman spectroscopy results indicated that the morphotropic phase boundary (MPB) separating tetragonal from rhombohedral phases located around the region with x = 0.14-0.16. Well-saturated ferroelectric P- E loops were obtained for all compositions and the compositions near MPB possessed the relative large remnant polarization P ~ 24 μC/cm and low coercive field E ~ 5 kV/cm. High performance of electric-induced-strain property with $$ d_{33}^{*} $$ ( S /E) up to 1,140 pm/V could be achieved in the composition with x = 0.15. When the content of PbZrO was 14 mol%, the ceramics showed slightly lowered piezoelectric coefficient $$ d_{33}^{*} $$ of 898 pm/V. But excellent temperature stability of piezoelectric property was exhibited that the $$ d_{33}^{*} $$ changed <10 % when the temperature increased from room temperature to 120 °C. The piezoelectric property of this solid solution makes it promising for application in multilayer piezoactuators.
- Subjects
PIEZOELECTRIC ceramics; FERROELECTRICITY; RAMAN spectroscopy; X-ray diffraction; EFFECT of temperature on ferromagnetic materials; LEAD titanate
- Publication
Journal of Materials Science: Materials in Electronics, 2014, Vol 25, Issue 6, p2540
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-014-1907-1