Magnetic Study of Nanoferritas CoFe₂O₄ Obtained by Reaction of Combustion

Abstract:

The present work aims to study the magnetic properties of nanoferrita cobalt obtained by combustion reaction. The structural feature as well as the magnetic behavior when in the presence of a magnet and magnetic measurements was investigated. The resulting samples were characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR), magnetic behavior when in the presence of a magnet and magnetic measurements. The results indicated the phase single the spinel ferrite CoFe₂O₄, with high intensity of diffraction peaks indicating that the samples are crystalline and nanoparticle formation. The characteristic bands of spinel were observed for nanoferritas CoFe₂O₄. The ferrite nanoparticles were strongly attracted when in presence the magnet presenting a saturation magnetization of 58.0 emu/g, coercivity of 1.14 kOe.

• Periodical: Materials Science Forum (Volumes 798-799)
• Pages: 402-406
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.798-799.402
• Online since: June 2014
• Authors: Polyana Tarciana Araújo Santos, Pascally M.A. Guerra de Araújo, Ana Cristina Figueiredo de Melo Costa, Daniel R. Cornejo
• Keywords: CoFe₂O₄, Combustion Reaction, Magnetic Measurements

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