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    • V T Kavitha

      Articles written in Bulletin of Materials Science

    • Volume 34 Issue 4 July 2011 pp 661-665

      Combustion synthesis and characterization of Ba2NdSbO6 nanocrystals

      V T Kavitha R Jose S Ramakrishna P R S Wariar J Koshy

      More Details Abstract Fulltext PDF

      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.

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