Novel Permanent Magnetic Materials Made by Rapid Quenching

Abstract

Two types of permanent magnetic materials were obtained by annealing melt spun flakes : (i) materials consisting mainly of Fe3B with Nd2Fe14B as a secondary phase, and (ii) materials based on Nd2Fe14C. The methods of preparation and the resulting magnetic properties are presented

Nano-Crystallization and Stability of an Amorphous Phase in Fe-Nd-B Alloy under 2.0 MeV Electron Irradiation

“…Not only grain size but also phase selection in a nano-composite structure is very important for improving hard magnetic properties, and many systematic studies on the formation and control of nano-crystalline structure by annealing condition and/or solidification process have been made to improve these properties. [1][2][3][4][5][6][7][8][9][10][11][12] However, it is very difficult to obtain an optimum well-controlled nanocomposite structure with such properties by thermal annealing and/or rapid solidification techniques.…”

Study on Magnetic Behavior of Nd8Fe84Ti2B6 Nanocomposite by FORC Diagram

“…Since the theoretical model for nanocomposite magnet was put forward by Coehoorn et al 1 , much work has been done in regards to this topic. Nd 2 Fe 14 B/α-Fe nanocomposite is a promising permanent magnetic material by combining advantages of Nd 2 Fe 14 B and α-Fe phases through magnetic exchange coupling between the two 2 .…”

Synthesis, Structure and Magnetization Behaviors of MnBi/Fe3B/Nd2Fe14B Nanocomposite alloy

“…Fe 3 B/Nd 2 Fe 14 B-type nanocomposite permanent magnets [1,2] have been attracting considerable attention because of the relatively low rare earth contents and reasonably high magnetic performances. However, its relatively low magnetic anisotropy limits the improvement of its (BH) max .…”