Particle chain formation in a liquid polymer under ac electric field: Model and experiments

Guillaume Belijar (1) , Sombel Diaham (2) , Lionel Laudebat (2, 3) , Zarel Valdez Nava (2) , Thierry Lebey (2) , T. Jones (4)

1 LAPLACE - LAboratoire PLasma et Conversion d'Energie
2 LAPLACE-MDCE - Matériaux Diélectriques dans la Conversion d’Energie
3 INUC - Institut national universitaire Champollion [Albi]
4 University of Rochester [USA]

This study treats the influence upon the bulk dielectric properties of epoxy resin loaded with barium titanate (BaTiO 3 ) particles when an ac electric field is used to form the particles into chains. A particle chain formation model, coupled with finite element method (FEM) solution of the Laplace's equation leads to estimates for permittivity as a function of the composite structure. Simulation results are then compared with experimental measurements that corroborate the time-dependent evolution of the dielectric permittivity.

Mots clés: Permittivity measurement; Decision support systems; Force; Permittivity; Electrodes; epoxy/BaTiOi composite; chaining; model; experiment; Permittivity measurement; Electric fields; Computational modeling

Domaines: Energie électrique

Guillaume Belijar, Sombel Diaham, Lionel Laudebat, Zarel Valdez Nava, Thierry Lebey, et al.. Particle chain formation in a liquid polymer under ac electric field: Model and experiments. 2016 IEEE International Conference on Dielectrics (ICD), Jul 2016, Montpellier, France. pp.305-308, ⟨10.1109/ICD.2016.7547605⟩. ⟨hal-02537416⟩