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- Title
Effects of pre-polarization on the dielectric and piezoelectric properties of 0-3 type PIN-PMN-PT/PVDF composites.
- Authors
Fang, Huajing; Li, Qiang; Yang, Zhanlue; Luo, Nengneng; Geng, Chong; Zhang, Yiling; Chu, Xiangcheng; Yan, Qingfeng
- Abstract
0-3 type composites based on pre-poled Pb(InNb)O-Pb(MgNb)O-PbTiO (PIN-PMN-PT) ceramic and poly-vinylidene fluoride (PVDF) have been fabricated. The dielectric and piezoelectric properties of the 0-3 composites were studied as a function of ceramic volume fraction. The results showed that the dielectric constant ε and piezoelectric strain constant d were enhanced with an increase of ceramic volume fraction. The composites possessed lower acoustic impedance and better flexibility comparing to the PIN-PMN-PT ceramic with the same composition, but their acoustic impedance Z and elastic stiffness coefficient C presented an abnormal decrease trend when a high volume fraction of ceramic (>80 %) was loaded in the composites. Since the Curie temperature of the PIN-PMN-PT ceramic reinforcement phase was much higher than the melting point of PVDF, pre-poled ceramic phase could keep its polarization during the subsequent complex processing. By comparing the dielectric and piezoelectric properties of composites using pre-poled ceramic with those using virgin one, it was found that pre-polarization of the PIN-PMN-PT reinforcement phase could improve the performance of these 0-3 type ceramic/polymer composites.
- Subjects
DIELECTRIC properties of piezoelectric ceramics; CURIE temperature; POLARIZATION (Electricity); ACOUSTIC impedance measurement; LEAD magnesium niobate
- Publication
Journal of Materials Science: Materials in Electronics, 2015, Vol 26, Issue 9, p6427
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-3232-8