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      https://www.ias.ac.in/article/fulltext/boms/022/01/0059-0064

    • Keywords

       

      Pyroelectricity; ferroelectricity; dielectric constant; loss tangent; conductivity

    • Abstract

       

      Pyroelectric properties of bismuth layer structured calcium substituted sodium bismuth titanate (Na0·5Bi0·5)1−xCaxBi4Ti4O15 withx=0 (NBT) andx=0·1 (0·1 NCBT) were studied by measuring the current under short circuit condition. Spontaneous polarization and figures of merit were evaluated from the measured values of pyroelectric coefficients, dielectric constant and loss tangent. The pyroelectric properties were studied in poled and short circuit condition from 30°C to 700°C. The results obtained were discussed in the light of dielectric and conductivity properties of the samples.

    • Author Affiliations

       

      P S Rama Sastry1 G S Kumar1 T Bhimasankaram1 G Prasad1

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

       
  • Bulletin of Materials Science | News

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