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Microstructure characterization and cation distribution of nanocrystalline Sn4+ substituted NiFe2O4

A. ADAM1, Z. ALI1,* , E. ABDELTWAB1, Y. ABB2

Affiliation

  1. Physics Department, Faculty of Science (Girls Branch), Al-Asher University, Cairo, Egypt
  2. Physics Department, Faculty of Science, Suez canal University, Ismailia, Egypt

Abstract

A series of nanocrystalline Sn4+ substituted NiFe2O4 with general formula Ni1+xSnx Fe2-2xO4 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) has been prepared by co-precipitation synthetic method. The prepared compounds have been sintered at 1000 ◦C. The structural and microstructural evolutions of the nanophase have been studied by X-ray powder diffraction and the Rietveld method. The X-ray diffraction patterns showed that all the samples have cubic structure with the space group Fd3m.Specific structural parameters were obtained by X-ray diffraction (XRD) spectra fitting refinement using the Rietveld method. Microstructure characterization by TEM corroborates the findings of X-ray analysis..

Keywords

Nanocrystalline Ni - Ferrite, Cation distribution, Microstructure, Rietveld method.

Submitted at: June 27, 2009
Accepted at: July 23, 2009

Citation

A. ADAM, Z. ALI, E. ABDELTWAB, Y. ABB, Microstructure characterization and cation distribution of nanocrystalline Sn4+ substituted NiFe2O4, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 7, pp. 1007-1014 (2009)