Solution combustion synthesis of Fe-Ni-Y₂O₃ nanocomposites for magnetic application

Abstract

Fe-Ni-Y₂O₃ nanocomposites with uniform distribution of fine oxide particles in the gamma FeNi matrix were successfully fabricated via solution combustion followed by hydrogen reduction. The morphological characteristics and phase transformation of the combusted powder and the Fe-Ni-Y₂O₃ nanocomposites were characterized by XRD, FESEM and TEM. Porous Fe-Ni-Y₂O₃ nanocomposites with crystallite size below 100 nm were obtained after reduction. The morphology, phases and magnetic property of Fe-Ni-Y₂O₃ nanocomposites reduced at different temperatures were investigated. The Fe-Ni-Y₂O₃ nanocomposite reduced at 900 °C has the maximum saturation magnetization and the minimum coercivity values of 167.41 A/(m²·kg) and 3.11 kA/m, respectively.

Keywords

nanocomposite powder / solution combustion synthesis / soft magnetic materials / magnetic properties

References

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