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Piezoelectric properties of polymer/lead-free ceramic composites

Alexandre, Mike Abidine and Bessaguet, Camille and David, Charlotte and Dantras, Eric and Lacabanne, Colette Piezoelectric properties of polymer/lead-free ceramic composites. (2016) Phase Transitions, 89 (7-8). 708-716. ISSN 0141-1594

(Document in English)

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Official URL: http://dx.doi.org/10.1080/01411594.2016.1206898


Thermoplastic/lead-free piezoelectric ceramic composite have been prepared. Sodium niobate (NaNbO3) has been chosen for its high Curie temperature. Moreover, it could be synthesized with two different morphologies: NaNbO3 nanowires (NN NW’s) and NaNbO3 particles (NNP’s). The filler has been dispersed in thermoplastic matrices with different dielectric permittivities eM: PA11 ( eM D 2Þ and polyvinylidene fluoride (PVDF) (eM D 10Þ. Due to polarization conditions, only ceramic particles are poled. The piezoelectric coefficient (d33) has been measured in composites. The higher d33 is recorded in composites based on PA11 (d33 D 6.5 pC.N¡1 for 30 vol. % NN NW’s). The influence of the NN aspect ratio on PVDF/NN composites has been analysed: the higher d33 (d33 D 2.6 pC.N¡1 for 25 vol. %) is recorded in PVDF/NN P’s. The major interest of these hybrid lead-free piezoelectric composites is mild poling conditions, ductility and thermal stability of piezoelectric performances.

Item Type:Article
Additional Information:Thanks to Taylor&Francis editor. The definitive version is available at http://www.tandfonline.com/ The original PDF of the article can be found at http://www.tandfonline.com/doi/pdf/10.1080/01411594.2016.1206898
HAL Id:hal-01469215
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:16 Feb 2017 10:23

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