Journal of Materials Science

, Volume 45, Issue 1, pp 106–111 | Cite as

Dielectric response of Ag/BaTiO3/epoxy nanocomposites

  • L. RamajoEmail author
  • M. S. Castro
  • M. M. Reboredo


Dielectric properties and relaxation phenomena of hybrid material (functionalized nanosilver/BaTiO3/epoxy) were studied as a function of ceramic content. Nanoparticles were obtained through chemical reduction in ethanol and triethylenetetramine. Epoxy resin, functionalized Ag and BaTiO3 were mixed and composites were prepared onto glass substrates by dipping technique. Samples containing various amounts of ceramic filler were examined by thermal and SEM analysis. Dielectric measurements were performed at different frequencies and temperatures. It was found that hybrid materials had high permittivities and their relaxation processes were influenced by the epoxy resin near its Tg, while metallic and ceramic content modified the real permittivity values.


Silver Nanoparticles BaTiO3 Hybrid Material Barium Titanate Electrical Modulus 



This work was supported by the National Council of Science and Technology of Argentina (CONICET). Also it was achieved thanks to material donation from Dow Chemical Argentina due to management of Ariadna Spinelli and Alfredo Fahnle.


  1. 1.
    Bai Y, Cheng Z-Y, Bharti V, Xu HS, Zhang QM (2000) Appl Phys Lett 25:3804CrossRefGoogle Scholar
  2. 2.
    Hu T, Juuti J, Jantunen H, Vilkman T (2007) J Eur Ceram Soc 27:3997CrossRefGoogle Scholar
  3. 3.
    Gregorio R, Cestari JM, Bernardino FE (1996) J Mater Sci 11:2925. doi: CrossRefGoogle Scholar
  4. 4.
    Chan HLW, Chan WK, Zhang Y, Choy CL (1998) IEEE Trans Dielectr Electr Insulation 4:505CrossRefGoogle Scholar
  5. 5.
    Dias CJ, Das-Gupta DK (1996) IEEE Trans Dielectr Electr Insulation 5:706CrossRefGoogle Scholar
  6. 6.
    Chen H-L, Yu P, Xiao D-Q (2008) J Funct Mater 39:367Google Scholar
  7. 7.
    Shri Prakas B, Varma KBR (2007) Compos Sci Technol 67:2363CrossRefGoogle Scholar
  8. 8.
    Psarras GC (2006) Compos A 37:1545CrossRefGoogle Scholar
  9. 9.
    Tsangaris G, Psarras GC (1999) J Mater Sci 34:2151. doi: CrossRefGoogle Scholar
  10. 10.
    Ramajo L, Parra R, Reboredo M, Castro M (2009) J Chem Sci 121:83CrossRefGoogle Scholar
  11. 11.
    Parkhutik VP, Shershulskii VI (1986) J Phys D Appl Phys 19:623CrossRefGoogle Scholar
  12. 12.
    Ramajo L, Reboredo MM, Castro MS (2007) J Mater Sci 42:3685. doi: CrossRefGoogle Scholar
  13. 13.
    Tsangaris G, Kouloumbi N, Kyvelidis S (1996) Mater Chem Phys 44:245CrossRefGoogle Scholar
  14. 14.
    Kao KC (2004) Dielectric phenomena in solids. Elsevier Academic Press, New YorkGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Institute of Research in Materials Science and Technology (INTEMA)(CONICET–University of Mar del Plata)Mar del PlataArgentina

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