• Phase transition and dielectric study in Ba0.95Dy0.05TiO3 ceramic

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      https://www.ias.ac.in/article/fulltext/boms/034/04/0927-0931

    • Keywords

       

      BDT; ferroelectric; dielectric; relaxor.

    • Abstract

       

      Temperature and frequency dependence dielectric permittivity of Ba0.95Dy0.05TiO3 ceramic has been studied in the temperature range of 100–350 K at the frequencies, 1 kHz, 10 kHz, 100 kHz and 1 mHz. Diffuse phase transition and frequency dispersion is observed in the permittivity-vs-temperature plots. This has been attributed to the occurrence of relaxor ferroelectric behaviour. The observed relaxor behaviour has been quantitatively characterized based on phenomenological parameters. A comparison with the Zr doped BaTiO3 has also been presented. The microstructure of as-sintered samples shows a dense and almost uniform micrograph without any impurity phases; the grains are almost spherical with random orientation.

    • Author Affiliations

       

      M R Panigrahi1 S Panigrahi1

      1. Department of Physics, National Institute of Technology, Rourkela 769 008, India
    • Dates

       
  • Bulletin of Materials Science | News

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