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      https://www.ias.ac.in/article/fulltext/boms/034/04/0661-0665

    • Keywords

       

      Ceramics; infrared spectroscopy; surface morphology; transmission electron microscopy.

    • Abstract

       

      Nanocrystalline Ba2NdSbO6, a complex cubic perovskite metal oxide, powders were synthesized by a self-sustained combustion method employing citric acid. The product was characterized by X-ray diffraction, differential thermal analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, transmission electron microscopy and scanning electron microscopy. The as-prepared powders were single phase Ba2NdSbO6 and a mixture of polycrystalline spheroidal particles and single crystalline nanorods. The Ba2NdSbO6 sample sintered at 1500°C for 4 h has high density (∼ 95% of theoretical density). Sintered nanocrystalline Ba2NdSbO6 had a dielectric constant of ∼ 21; and dielectric loss = 8 × 10-3 at 5 MHz.

    • Author Affiliations

       

      V T Kavitha1 R Jose2 S Ramakrishna2 P R S Wariar1 J Koshy1

      1. Department of Physics, University College, Thiruvananthapuram 695 034, India
      2. National University of Singapore, Singapore 117576
    • Dates

       
  • Bulletin of Materials Science | News

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