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      https://www.ias.ac.in/article/fulltext/boms/023/05/0361-0367

    • Keywords

       

      Nanophase materials; nanocomposites; dielectric properties

    • Abstract

       

      The dielectric properties of nanophase Ag2HgI4 and Ag2HgI4-Al2O3 nanocomposites at different frequencies have been studied over a temperature range covering the stability range of β phase of Ag2HgI4 and beyond the β to a phase transition temperature. έ′, tan δ and σa.c. of nanophase Ag2HgI4 and Ag2HgI4-Al2O3 nanocomposites were found to be larger than the reported values for polycrystalline pellets of Ag2HgI4. The dielectric properties of the nanocomposites were found to be a function of the wt.% of nano alumina. The observed changes are attributed to the grain boundary properties of nanophase materials and to the microsize space charge effects.

    • Author Affiliations

       

      S Sankara Narayanan Potty1 2 M Abdul Khadar1

      1. Department of Physics, University of Kerala, Kariavattam, Thiruvananthapuram - 695 581, India
      2. Centre for Materials for Electronics Technology, Athani P.O., Thrissur, India
    • Dates

       
  • Bulletin of Materials Science | News

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