Influence of Nd Doping on the Magnetic Properties of Nd₂Fe₁₄B/α-Fe Nanocomposite Magnets

Abstract:

Soft magnetic alloys Fe₉₅Nd₅ and Fe_89.5Nd_10.5 were made by the mechanically ball milling to investigate the influence of Nd doping on the magnetic properties of Nd₂Fe₁₄B/α-Fe nanocomposite magnets. The coercivity was enhanced with increasing Nd of the pre-alloyed Nd-Fe soft powders. The further discussions on Nd₂Fe₁₄B/α-Fe nanocomposite were also carried out through directly mixing the pure Nd as the interface improving agent. Compared with Nd-Fe pre-alloys, the direct addition of Nd was more favorable to reinforce the coercivity of nanocomposite magnets and the squareness of demagnetization curve, thereby increasing the maximum magnetic energy product.

• Periodical: Materials Science Forum (Volumes 809-810)
• Pages: 88-92
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.809-810.88
• Online since: December 2014
• Authors: Xiao Dong Fan, Na Tian*, Cai Yin You
• Keywords: Interface Tuning, Maximum Magnetic Energy Product, Mechanically Ball Milling, Nd₂Fe₁₄B/α-Fe Nanocomposite Magnets

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