Exchange coupled Nd2Fe14B/α-Fe nanocomposite magnets with fine α-Fe grains

✍ Scribed by Yang Sen; Song Xiaoping; Du Youwei

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 227 KB
• Volume: 66
• Category: Article
• ISSN: 0167-9317
• DOI: 10.1016/s0167-9317(03)00035-2

✦ Synopsis

Exchange coupled Nd Fe B / a-Fe nanocomposite magnets have been synthesized by melt-spun. The effect 2 14

of wheel speed on the magnetic properties and microstructure has been studied. The results show that a uniform Nd Fe B / a-Fe nanocomposite structure with fine a-Fe grains can be obtained at an optimum wheel speed of 2 14 12 m / s. After a low temperature annealing, the magnetic properties can reach a maximum value: H 5 432.2 i c 3 kA/m, J 5 1.08 T, (BH ) 5 115 kJ / m . r m a x