The high quality and the relevance of Camille’s thesis contributed to get significant results as a part of COMPINNOVTP project.
About this thesis
- Dr. E. DANTRAS, Cirimat – CNRS – PhD Advisor
- Pr. G. MICHON – Toulouse University – PhD Advisor
- Pr. L. LEBRUN – INSA Lyon – Rapporteur
- Dr. B. DEFOORT – Ariane Group – Rapporteur
- Pr. G. CHEVALLIER – Besançon University – Examiner
- Pr. J. MARTINEZ-VEGA – Toulouse University – Examiner
- Dr. M.CHEVALIER – IRT Saint-Exupéry/Airbus – Invited
Related Publications & Conference Communications
Abstract : Lead-free piezoelectric nanocomposites based on poly(ether ketone ketone) (PEKK) and sodium niobate (NaNbO3) particles were elaborated. The presence of submicronic particles does not influence the thermal stability of the matrix so that no degradation phenomenon is observed before 500 °C. The conservative mechanical modulus G′ increases linearly with the NaNbO3 fraction; this variation is well fitted by the Kerner model until 20 vol%. Such nanocomposites remain ductile. The polarizing field required for obtaining piezoelectric nanocomposites is 12 kV·mm−1 i.e. analogous with the one used for poling bulk ceramic. The value of the piezoelectric coefficient (d33 = 0.2 pC·N−-1 for 20 vol% NaNbO3) is consistent with the Furukawa’s model. This value is explained by the low PEKK permittivity. This low d33 is counterbalanced by the piezoelectric voltage constant (g33 = 103·10−3 Vm·N−1) which is higher than the one of classical piezoelectric ceramic like PZT or BaTiO3.
C. Bessaguet, E. Dantras, G. Michon, M. Chevalier and C. Lacabanne (2017): “Passive vibration damping nanocomposite for high performance applications”. EPF 2017 (European Polymer Federation Congress), Lyon (France). July 2 – 7th, 2017
C. Bessaguet, E. Dantras, G. Michon, M. Chevalier and C. Lacabanne (2017): “Passive vibration damping of high performance thermoplastic composite filled with piezoelectric particles”. Journée des doctorants du CNES, Toulouse (France). June 27, 2017
C. Bessaguet, E. Dantras, C. Lacabanne, G. Michon and M. Chevalier: “PAEK / Piezoelectric Particles Nanocomposites for Interactive Structures”. IC3 2016 (International Carbon Composites Conference), Arcachon (France). 2016
C. Bessaguet, E. Dantras, D. Carponcin and G. Michon: “Piezoelectric and mechanical properties of a high performance thermoplastic composite”. JIP-JEPO 2015, Donostia-San Sebastian (Spain). 2015