ICAME 2003 pp 97-102 | Cite as

Synthesis of Nanocrystalline Ni0.5Zn0.5Fe2O4 by Aerosol Route and Its Characterization

Conference paper

Abstract

Nano-size particles of Ni0.5Zn0.5Fe2O4 ferrite were prepared through aerosol route. The solutions of iron, nickel and zinc nitrates were mixed in stoichiometric proportion, passed through a pneumatic nebulizer, to get very fine mist (aerosols), and a furnace at ~600°C in air atmosphere. Through various events in succession, metal atoms form ferrite in air. The average particle size was found to be 16±6 nm which increased to 80±8 nm after annealing at 1000°C. The room-temperature magnetic moment of the sample as obtained and after annealing it at various temperatures indicate that the saturation magnetization increases from 1.80 to 72.8 emu/g, while remanent magnetization increases from 0.28 to 25.0 emu/g. Mössbauer spectrum of the sample at room temperature exhibited a doublet with δ (Fe) = 0.33 mm s−1 and Δ EQ = 0.78 mm s−1 suggesting superparamagnetic nature. However, after annealing at 1000°C this doublet got converted into two magnetic sextets with B = 52.4 T and 49.0 T suggesting increase in particle size on annealing. These observations are in conformity with Transmission Electron Microscope (TEM) and X-Ray Diffraction (XRD) results that the particle size increases after annealing the sample at higher temperatures.

Keywords

Zinc Permeability Nickel Furnace Ferrite 

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References

  1. 1.
    Jartych, E., Zurawicz, J. K., Oleszak, D. and Pekala, M., J. Magn. Mag. Mater. 208 (2000), 221.ADSCrossRefGoogle Scholar
  2. 2.
    Chow, G. M. and Ivanova, N. N., Nanostructural Materials Science and Technology, Kluwer Academic Publishers, Dordrecht, 1998.Google Scholar
  3. 3.
    Xiang, L., Deng, X. Y. and Jin, Y., Scripta Mat. 47 (2002), 219.CrossRefGoogle Scholar
  4. 4.
    Ishino, K. and Narumiya, Y., Ceramic Bull. 66 (1987), 1469.Google Scholar
  5. 5.
    Dormann, J. L. and Nogues, M., J. Phys.: Condens. Matter. 2 (1990), 1223.ADSCrossRefGoogle Scholar
  6. 6.
    Rezlescu, N., Rexiescu, E., Pasnicu, C. and Craus, M. L., J. Phys.: Condens. Matter. 6 (1994), 5707.ADSCrossRefGoogle Scholar
  7. 7.
    Sedlar, M., Matejee, V., Grygar, T. and Kadlecova, J., Ceramics Int. 26 (2000), 507.CrossRefGoogle Scholar
  8. 8.
    Zhiyuan, L., Maoren, X. and Qinggiu, Z., J. Magn. Mag. Mat. 219 (2000), 9.ADSCrossRefGoogle Scholar
  9. 9.
    Wang, L. and Li, F. S., J. Magn. Mag. Mat. 223 (2001), 233.ADSCrossRefGoogle Scholar
  10. 10.
    Sileo, E. E., Rotelo, R. and Jacoben, F., Physica B 320 (2002), 257.ADSCrossRefGoogle Scholar
  11. 11.
    Klug, H. P. and Alexander, L. E., X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials, 2nd edn, Wiley, 1974, Chapter 9.Google Scholar
  12. 12.
    Kinemuchi, Y., Ishizaka, K., Suematsu, H., Jiang, W. and Yatsi, K., Thin Solid Films 407 (2002), 109.ADSCrossRefGoogle Scholar
  13. 13.
    Kim, C. S., Kim, W. C., An, S. Y. and Lee, S. W., J. Mag. Mag. Mat. 215–216 (2002), 213.Google Scholar
  14. 14.
    Battle, X., Obradors, X., Medarde, M., Carvajal, J. R., Pernet, M. and Regi, M. V., J. Mag. Mag. Mater. 124 (1993), 228.ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2004

Authors and Affiliations

  1. 1.Institute Instrumentation CentreIndian Institute of Technology-RoorkeeRoorkeeIndia
  2. 2.Department of ChemistryIndian Institute of Technology-RoorkeeRoorkeeIndia

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