Texture study of magnets made from anisotropic HDDR powders

Author

Panchanatha, V. ; Guruswamy, Sivaraman ; Shield, Jeffrey E.

Author_Institution

Magnequench Int., Anderson, IN, USA

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3832

Lastpage

3834

Abstract

The texture in magnets made from NdFeB anisotropic HDDR powders was examined using an inverse pole figure and (006) pole figure. Unlike anisotropic magnets made by hot deformation, the magnets produced in the present study did not show a strong preferred orientation. The (006) pole figure of these magnets shows a weak (006) texture in contrast to that observed for the anisotropic magnets made by the hot deformation process. TEM studies carried out on these samples indicate that they contain some grains which have grown bigger than the adjacent small grains. Alignment of flakes with large grains in an applied magnetic field makes these magnets made from HDDR powders anisotropic

Keywords

boron alloys; ferromagnetic materials; grain size; iron alloys; magnetic anisotropy; neodymium alloys; permanent magnets; powder metallurgy; texture; transmission electron microscopy; (006) pole figure; NdFeB; TEM studies; anisotropic HDDR powders; applied magnetic field; bonded magnets; flake alignment; grains; inverse pole figure; large grains; magnets; texture; weak (006) texture; Anisotropic magnetoresistance; Bonding; Electrons; Geometry; Lead; Magnetic analysis; Magnets; Optical reflection; Powders; X-ray diffraction;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619586

Filename

619586