DocumentCode :
1053392
Title :
The influence of surface conditions on the coercive force of SmCo5 particles
Author :
Searle, Clark W. ; Frederick, William G.D. ; Garrett, Harold J.
Author_Institution :
University of Dayton Research Institute, Dayton, Ohio
Volume :
9
Issue :
3
fYear :
1973
fDate :
9/1/1973 12:00:00 AM
Firstpage :
164
Lastpage :
167
Abstract :
The magnetic properties of single crystals of SmCo5 have been studied. The spontaneous magnetization was 894 emu/cm3at room temperature. The process of magnetization reversal was extremely sensitive to the surface condition. The magnetization reversal process for spheres with rough surfaces was dominated by free wall motion, while the magnetization for spheres with the smoothest surfaces reversed by means of a jump from the completely magnetized state to the completely reversed state. These latter spheres had an energy product equal to the limiting value of 
MGOe. Some preliminary data for NdCo5 and YCo5 are also presented.
MGOe. Some preliminary data for NdCoKeywords :
Powdered magnetic materials; Samarium-cobalt alloys; Coercive force; Earth; Magnetic anisotropy; Magnetic domains; Magnetic materials; Magnetization reversal; Perpendicular magnetic anisotropy; Powders; Rough surfaces; Surface roughness;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1973.1067694
Filename :
1067694
Link To Document :
