INVESTIGADORES
RAMAJO leandro Alfredo
artículos
Título:
Dielectric Behaviour of CaCu3Ti4O12-Epoxy Composites
Autor/es:
LEANDRO ALFREDO RAMAJOA; MIGUEL ANGEL RAMIREZ; PAULO ROBERTO BUENO; MARÍA MARTA REBOREDO; MIRIAM SUSANA CASTRO
Revista:
MATERIALS RESEARCH
Editorial:
Revista Iberoamericana de Materiales
Referencias:
Lugar: San Carlos, Brasil; Año: 2008 vol. 11 p. 85 - 88
ISSN:
1516-1439
Resumen:
The dielectric behavior of composite materials (epoxy resin barium titanate and epoxy CCTO) was analysed as a function of ceramic amount. Composites were prepared by mixing the components and pouring them into suitable moulds. In some compositions, the matrix was reduced by tetrahydrofuran (THF) incorporation. Samples containing various amounts of ceramic filler were examined by TG/DTA and scanning electron microscopy analysis. Dielectric measurements were performed from 20 Hz to 1 MHz and 30 to 120 °C. It was demonstrated that the epoxy CCTO composites possessed higher permittivity than classic epoxy BaTiO3 composites. However, the low resin permittivity prevailed in the composite dielectric performance.
