Nanomaterials (May 2020)

Coercivity and Magnetic Anisotropy of (Fe<sub>0.76</sub>Si<sub>0.09</sub>B<sub>0.10</sub>P<sub>0.05</sub>)<sub>97.5</sub>Nb<sub>2.0</sub>Cu<sub>0.5</sub> Amorphous and Nanocrystalline Alloy Produced by Gas Atomization Process

  • Kenny L. Alvarez,
  • José Manuel Martín,
  • Nerea Burgos,
  • Mihail Ipatov,
  • Lourdes Domínguez,
  • Julián González

DOI
https://doi.org/10.3390/nano10050884
Journal volume & issue
Vol. 10, no. 5
p. 884

Abstract

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We present the evolution of magnetic anisotropy obtained from the magnetization curve of (Fe0.76Si0.09B0.10P0.05)97.5Nb2.0Cu0.5 amorphous and nanocrystalline alloy produced by a gas atomization process. The material obtained by this process is a powder exhibiting amorphous character in the as-atomized state. Heat treatment at 480 °C provokes structural relaxation, while annealing the powder at 530 °C for 30 and 60 min develops a fine nanocrystalline structure. Magnetic anisotropy distribution is explained by considering dipolar effects and the modified random anisotropy model.

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