BaTiO3-filled epoxy resin composites: Numerical modelling of dielectric constants

The influence of BaTiO3 content on the composite dielectric properties was investigated by finite element method (FEM). This method is attractive because of its technological applications such as those in electromagnetic shields, since it allows to determine the dielectric constant of heterogeneous...

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Detalhes bibliográficos
Autores: Ramajo, Leandro Alfredo, Ramajo, Damian Enrique, Santiago, D., Reboredo, Maria Marta, Castro, Miriam Susana
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/26405
Acesso em linha:http://hdl.handle.net/11336/26405
Access Level:acceso abierto
Palavra-chave:Dielectric Constant
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
Descrição
Resumo:The influence of BaTiO3 content on the composite dielectric properties was investigated by finite element method (FEM). This method is attractive because of its technological applications such as those in electromagnetic shields, since it allows to determine the dielectric constant of heterogeneous mediums and show or display the electric field into the material in order to understand the interfacial behaviours. The dielectric response of an anisotropic and periodic heterostructure, was evaluated and quantified by means of a quasistatic approximation using Laplace`s equation which was solved by 3D FEM. The numerical calculations were confronted with experimental data. Measurements of the effective permittivity were carried out in samples prepared by dipping technique.