DocumentCode
984968
Title
Lorentz electron microscopy of Co-Sm permanent-magnet materials
Author
Fidler, J. ; Skalicky, P.
Author_Institution
Technical University, Karlsplatz, Vienna, Austria
Volume
17
Issue
6
fYear
1981
fDate
11/1/1981 12:00:00 AM
Firstpage
2648
Lastpage
2650
Abstract
The magnetic domain structure and microstructure of several Co-Sm magnet alloys were examined by transmission electron microscopy. This study reveals that the investigated single-phase magnets exhibit a low defect density within the grains. The coercivity is determined by the nucleation of reverse domains at soft magnetic inclusions. Precipitation - hardened magnets contain a fine-scale precipitation structure. From the wavy nature of the domain walls we conclude a strong pinning at the precipitates.
Keywords
Coercive forces; Electron microscopy; Magnetic domains; Permanent magnet materials; Crystal microstructure; Electron microscopy; Grain boundaries; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic materials; Permanent magnets; Perpendicular magnetic anisotropy; Transmission electron microscopy;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1981.1061547
Filename
1061547
Link To Document