Magnetics Hysteresis Properties and Microstructure of High-Energy (Nd,Dy)–Fe–B Magnets with Low Oxygen Content

• Published in: Physics of metals and metallography Vol. 122; no. 12; pp. 1173 - 1182
• Main Authors: Vasilenko, D. Yu, Shitov, A. V., Bratushev, D. Yu, Podkorytov, K. I., Gaviko, V. S., Golovnya, O. A., Popov, A. G.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2021; Springer; Springer Nature B.V
• Subjects: Chemical composition; Chemistry and Materials Science; Coercivity; Dysprosium; Electrical and Magnetic Properties; Flux density; Grain size; Hysteresis; Inclusions; Magnetic hysteresis; Magnetic properties; Magnets; Materials Science; Metallic Materials; Microstructure; Neodymium; Optimization; Oxygen content; Oxygen enrichment; X ray analysis; Nd–Fe–B; permanent magnet; microstructure

Magnetic properties and microstructure of high-energy (Nd,Dy)–Fe–B magnets with Dy of no more than 1 wt % prepared via a low-oxygen routine are studied. Oxygen content in magnets does not exceed 0.20 wt %. 0.5 wt %–Dy addition reliably stabilizes the coercivity M H c higher than 13 kOe; in this case...