Evolution of Texture and Magnetic Property in Nd–Pr–Fe–B-Based Nanocomposite Magnets With Plastic Deformation

Author

Hui Meng ; Juan Du ; Renjie Chen ; Jian Liu ; Jian Zhang ; Weixing Xia ; Kanghua Chen ; Aru Yan ; Liu, J. Ping

Author_Institution

Key Lab. of Magn. Mater. & Devices, Ningbo Inst. of Mater. Technol. & Eng., Ningbo, China

Volume

51

Issue

11

fYear

2015

Firstpage

1

Lastpage

4

Abstract

Hot-deformed Nd-Pr-Fe-B-based nanocomposite magnets with different values of compressive true strain ε were prepared by the die-upset method. The crystallographic texture quantified as the X-ray diffraction intensity ratio of (004) to (220) peaks of the (Nd, Pr)₂Fe₁₄B phase increased from 0.6 for ε = 0 to 2.06 for ε = 2.30, and correspondingly, the magnetic anisotropy was enhanced significantly with ε. The mechanism for texture formation is explained as the preferential growth of the (Nd, Pr)₂Fe₁₄B grains with c-axis closer to the direction of stress in the process of deformation.

Keywords

X-ray diffraction; boron alloys; compressibility; iron alloys; magnetic anisotropy; nanocomposites; nanofabrication; nanomagnetics; neodymium alloys; permanent magnets; plastic deformation; praseodymium alloys; texture; Nd_7.91Pr_2.68Fe₈₄B_5.41; X-ray diffraction; compressive true strain; crystallographic texture; die-upset method; hot-deformed nanocomposite magnets; magnetic anisotropy; magnetic property; plastic deformation; preferential growth; texture evolution; texture formation; High definition video; Magnetic hysteresis; Magnetic resonance imaging; Magnetomechanical effects; Perpendicular magnetic anisotropy; Saturation magnetization; Exchange coupling; Permanent magnets; exchange-coupling; magnetic anisotropy; permanent magnets; texture;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2015.2442971

Filename

7124491