AIP Advances (Aug 2023)

Micromagnetic study on Nd2Fe14B/α-Fe nanocomposite with inter-granular phase

  • Jong-Hyok Kim,
  • Chol-Song Kim

DOI
https://doi.org/10.1063/5.0151976
Journal volume & issue
Vol. 13, no. 8
pp. 085201 – 085201-5

Abstract

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The magnetic performance of hard-/soft-phase nanocomposites depends on their microstructure. Nanocomposites with an inter-granular phase, fabricated via a physical route, are fascinating as they can further enhance the magnetic properties of hard-/soft-phase nanocomposites. In this study, the magnetic performance is estimated on an isotropic Nd2Fe14B/α-Fe nanocomposite system with an inter-granular phase via micromagnetic simulation. The simulated results show that the magnetic performance of the system is strongly dependent on the size of Nd2Fe14B particles and the thickness of α-Fe phase. The simulated energy product provides a good approximation to the experimental one. The optimal size of Nd2Fe14B particles and thickness of the α-Fe phase, which give the highest energy product, are found. The simulation is expected to contribute to the preparation of high-performance isotropic Nd2Fe14B/α-Fe nanocomposite magnets with an inter-granular soft-magnetic phase.