Evaluation of Structural and Morphological Characteristics of the System Ni1-xZnxFe2O4 Obtained by Combustion Reaction

Aluska do Nascimento Simões Braga; Alberto Correia Gomes Filho; Laédna Souto Neiva; Tamiris Rodrigues Silva; João Bosco Lucena Oliveira; Lucianna Gama

doi:10.4028/www.scientific.net/MSF.775-776.678

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HomeMaterials Science ForumMaterials Science Forum Vols. 775-776Evaluation of Structural and Morphological...

Evaluation of Structural and Morphological Characteristics of the System Ni_1-xZn_xFe₂O₄ Obtained by Combustion Reaction

Abstract:

The synthesis by combustion reaction stands as an alternative technique for preparing powders with high purity level, nanometric particle size and low cost. Therefore, this study had as objective the synthesis and characterization of ferrite powders with nominal composition NI_1-xZn_xFe₂O₄ (x = 0.6, 0.7 and 0.8 mol) prepared by combustion reaction using urea as fuel. The influence of the quantity of zinc in the final characteristics of the powders was also investigated. The powders were characterized by X-ray diffraction (XRD), nitrogen adsorption (BET) and scanning electron microscopy (SEM). All compositions resulted in nanometric powders of Ni-Zn ferrites with direct formation of the inverse spinel phase, showing the effectiveness of the synthesis method applied. The increase of zinc's concentration caused an increase in surface area, ranging 4 m²g^-1 from 23 m² g^-1. And the SEM micrographs show that the powders have thinner particle morphology with increasing zinc content.

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Materials Science Forum (Volumes 775-776)

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678-681

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.775-776.678

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January 2014

Authors:

Aluska do Nascimento Simões Braga, Alberto Correia Gomes Filho, Laédna Souto Neiva, Tamiris Rodrigues Silva, João Bosco Lucena Oliveira, Lucianna Gama

Keywords:

Combustion Reaction, Ferrite, Zinc

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DOI: 10.1590/s0366-69132003000300005

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