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Study of structural and dielectric property of (bafe12o19 - zro2) nanocomposite material via sol-gel method

Author:

Thameem Fathima, K., Jesurani, S. and Srimeena, S.

Subject Area:

Physical Sciences and Engineering

Abstract:

The nano powders of Bariumhexaferrite and zirconium oxide in different weight ratios had been prepared by sol-gel method. The formation of pure crystallized BaFe12O19 and ZrO2 nanoparticles were occurred, when the precursor were calcined at 8000C and 10000C for 3hrs. The vibrational, structural, morphological, thermal and dielectric properties have been determined by Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Thermal analysis (TG/DTA), and scalar analyzer. FTIR spectra exhibited band in the range of 473-550 cm-1 which confirmed the presence of (BaFe12O19 – ZrO2) nanoparticles. Nanoparticles of barium hexaferrite and zirconium oxide had average crystalline size between (32nm- 44nm) respectively. The SEM image revealed that powder is well crystallized and the particles are elongated hexagonal structure. The dielectric studies showed the frequency, dielectric constant and dielectric loss in the range of 11.5GHz, 24.6 and 0.0064.

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