Abstract
Nd2Fe14B/Fe(Co) nanocomposite ribbons were successfully fabricated by the melt-spinning technique. Nd10Fe85−xCoxB5 (x = 0, 10, 20, 30, and 40) prealloys were used as starting materials, and the wheel speed was varied from 10 m/s to 20 m/s. The effects of substitution of Fe by Co and the wheel speed were investigated to enable direct preparation of high-performance nanocomposite ribbons. It was found that the optimal wheel speed depended on the Co content in the ribbons. The highest energy product (BH)max of the as-spun ribbons reached 144.3 kJ/m3 when using the optimal speed of 16 m/s for Nd10Fe65Co20B5. By annealing the ribbons at 873 K and 973 K for 30 min, the magnetic properties of the Nd10Fe65Co20B5 nanocomposite ribbons obtained at a speed of 20 m/s were significantly improved. The microstructure and magnetic properties of the prepared ribbons are discussed in detail.
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Van, H.T., Vinh, N.D., Ca, N.X. et al. Effect of Wheel Speed on Magnetic Properties of Nd10Fe85−xCoxB5 (x = 0 to 40) Nanocomposite Ribbons. J. Electron. Mater. 49, 3902–3906 (2020). https://doi.org/10.1007/s11664-020-08112-y
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DOI: https://doi.org/10.1007/s11664-020-08112-y