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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/022/04/0779-0783

    • Keywords

       

      Electrical properties; sodium metavanadate

    • Abstract

       

      Impedance of sintered discs of 0·1, 0·25, 0·4 mol% of sodium metavanadate was measured in the frequency range 10 kHz-1 MHz and in the temperature region from room temperature (=30°C) to 450°C. AC conductivity was calculated from the data. DC conductivity was measured in the temperature range 150–450°C. Debye type of relaxation effects were observed in the dielectric loss. The activation energy of the dipoles involved in relaxation was estimated. The activation energy for AC conduction in the temperature above 380°C was calculated. These values are larger than the activation energy of pure sodium metavanadate sample. The relaxation phenomenon observed is explained.

    • Author Affiliations

       

      B V Bahuguna Saradhi1 G Prasad1 G S Kumar1 T Bhimasankaram1

      1. Department of Physics, Osmania University, Hyderabad - 500 007, India

    • Dates

       
      Published
      June 1999
      Manuscript received
      24 July 1998
      Manuscript revised
      25 January 1999

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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