Dielectric response of Ag/BaTiO3/epoxy nanocomposites

Abstract

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.

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References

  1. 1.

    Bai Y, Cheng Z-Y, Bharti V, Xu HS, Zhang QM (2000) Appl Phys Lett 25:3804

    Article  Google Scholar 

  2. 2.

    Hu T, Juuti J, Jantunen H, Vilkman T (2007) J Eur Ceram Soc 27:3997

    CAS  Article  Google Scholar 

  3. 3.

    Gregorio R, Cestari JM, Bernardino FE (1996) J Mater Sci 11:2925. doi:https://doi.org/10.1007/BF00356003

    Article  Google Scholar 

  4. 4.

    Chan HLW, Chan WK, Zhang Y, Choy CL (1998) IEEE Trans Dielectr Electr Insulation 4:505

    Article  Google Scholar 

  5. 5.

    Dias CJ, Das-Gupta DK (1996) IEEE Trans Dielectr Electr Insulation 5:706

    Article  Google Scholar 

  6. 6.

    Chen H-L, Yu P, Xiao D-Q (2008) J Funct Mater 39:367

    CAS  Google Scholar 

  7. 7.

    Shri Prakas B, Varma KBR (2007) Compos Sci Technol 67:2363

    Article  Google Scholar 

  8. 8.

    Psarras GC (2006) Compos A 37:1545

    Article  Google Scholar 

  9. 9.

    Tsangaris G, Psarras GC (1999) J Mater Sci 34:2151. doi:https://doi.org/10.1023/A:1004528330217

    CAS  Article  Google Scholar 

  10. 10.

    Ramajo L, Parra R, Reboredo M, Castro M (2009) J Chem Sci 121:83

    CAS  Article  Google Scholar 

  11. 11.

    Parkhutik VP, Shershulskii VI (1986) J Phys D Appl Phys 19:623

    CAS  Article  Google Scholar 

  12. 12.

    Ramajo L, Reboredo MM, Castro MS (2007) J Mater Sci 42:3685. doi:https://doi.org/10.1007/s10853-006-1408-6

    CAS  Article  Google Scholar 

  13. 13.

    Tsangaris G, Kouloumbi N, Kyvelidis S (1996) Mater Chem Phys 44:245

    CAS  Article  Google Scholar 

  14. 14.

    Kao KC (2004) Dielectric phenomena in solids. Elsevier Academic Press, New York

    Google Scholar 

Download references

Acknowledgements

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.

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Correspondence to L. Ramajo.

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Ramajo, L., Castro, M.S. & Reboredo, M.M. Dielectric response of Ag/BaTiO3/epoxy nanocomposites. J Mater Sci 45, 106–111 (2010). https://doi.org/10.1007/s10853-009-3898-5

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Keywords

  • Silver Nanoparticles
  • BaTiO3
  • Hybrid Material
  • Barium Titanate
  • Electrical Modulus