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      https://www.ias.ac.in/article/fulltext/boms/028/02/0121-0123

    • Keywords

       

      Ceramics; electronic material; oxides; chemical synthesis; ferroelectricity.

    • Abstract

       

      A gel was formed when a aqueous solution of BaCl2, NbF5 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600°C yielded the nano crystallites of BaNb2O6, as confirmed by X-ray diffraction study (XRD). This is a much lower temperature as compared to that prepared by traditional solid state method (1000°C) as reported for the formation of BaNb2O6. Transmission electron microscopic (TEM) investigations revealed that the average particle size is 50 nm for the calcined powders. The room temperature dielectric constant at 1 kHz is found to be 1000. The ferroelectric hysteresis loop parameters of these samples were also studied.

    • Author Affiliations

       

      S P Gaikwad1 Violet Samuel2 Renu Pasricha3 V Ravi1

      1. Physical and Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, India
      2. Catalysis Division, National Chemical Laboratory, Pune 411 008, India
      3. Centre for Materials Characterization, National Chemical Laboratory, Pune 411 008, India
    • Dates

       
  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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      Posted on July 25, 2019

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