Abstract
The amorphous as-spun ribbons with nominal composition (Nd0.75Pr0.25)9Fe72Ti1Zr3Mn x Mo4−x B10.5C0.5(x = 1, 2, 3) were annealed by microwave-assisted annealing. The effects of the Mn-doped alloys on glass-forming ability (GFA), crystallization, and magnetic properties of the Nd2Fe14B/α-Fe nanocomposite magnets were examined by thermal differential scanning calorimetry (DSC), X-ray diffraction (XRD), and vibrating sample magnetometry (VSM). An appropriate amount of Mn was beneficial to the optimization of the structure and magnetic properties. Compared with conventional annealing, the microwave-assisted annealing has contributed to the precipitation of hard magnetic phases and adjusted the proportion of hard and soft magnetic phases. The optimum magnetic properties with coercivity up to 805 kA/m were found for ribbons (with composition x = 1) annealed under the microwave power of 2000 W for 10 min.
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This work was supported by the Project of the State Key Laboratory for Advanced Metals and Materials of PR China (2013-Z02) and the Shanghai Science and Technology Committee of PR China (16090503600).
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Wang, T., Tian, T., Ding, S. et al. Effects of Microwave-Assisted Annealing on the Structure and Magnetic Properties of (Nd0.75Pr0.25)9Fe72Ti1Zr3Mn x Mo4−x B10.5C0.5 Amorphous Ribbons. J Supercond Nov Magn 31, 2241–2246 (2018). https://doi.org/10.1007/s10948-017-4448-z
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DOI: https://doi.org/10.1007/s10948-017-4448-z