Significant improvements of structure and magnetic properties of Pr2Fe14B/α-Fe nanocomposite magnets due to Cu and Mn substitution

✍ Scribed by Bai Yang; Bao Gen Shen; Tong Yun Zhao; Ji Rong Sun

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 568 KB
• Volume: 145
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/j.mseb.2007.09.047

✦ Synopsis

The influence of Cu and Mn substitution on the structure and magnetic properties of melt-spun Pr 8 Fe 87-x B 5 M x ribbons with 0 ≤ x ≤ 1.2 was studied. The experimental results show that the Cu substitution of appropriate quantity leads to the c-axis alignment of Pr 2 Fe 14 B phase in melt-spun ribbons. The substitution of Mn improves magnetic properties of melt-spun Pr 8 Fe 87-x B 5 Mn x ribbons, but does not show the same influences on the alignment of Pr 2 Fe 14 B phase as Cu substitution does. A remanence of 1.33 T, a coercive field of 462 kA/m and a maximum energy product of 185 kJ/m 3 in Pr 8 Fe 86.4 B 5 Mn 0.6 ribbons are obtained at room temperature.