Magnetic properties of Co5Sm-Lodex and Co5Sm-lead composites

Author

Doser, Manfred ; Summitt, Robert

Author_Institution

General Electric Magnetic Materials Section, Edmore, Mich.

Volume

9

Issue

3

fYear

1973

fDate

9/1/1973 12:00:00 AM

Firstpage

194

Lastpage

197

Abstract

Demagnetization curves were recorded for composites of 1) Co5Sm and Lodex, 2) Co5Sm and lead, and 3) two different Co5Sm powders of widely different Hcivalues. "Kinks" observed for the first and third composites but not the second show that the effect results from the difference in Hci. The Co5Sm-Lodex composites produced "kinks" in only the 20-80 wt % Lodex range. Significant improvement of energy product in Lodex composites requires more than 70 wt % of Co5Sm. Better results can be obtained by diluting Co5Sm with lead. For applications operating at high load lines and requiring high inductions, improved properties may be obtained by small additions of Co5Sm to Lodex. Energy product and Hcican be improved for Co5Sm-lead composites by zinc coating the magnetic particles prior to pressing. One sample produced $BH_{\\max }$ values of 7.5 MGOe and Hciof 13.5 kOe.

Keywords

Lodex; Powdered magnetic materials; Samarium-cobalt alloys; Composite materials; Demagnetization; Human computer interaction; Iron; Magnetic materials; Magnetic properties; Magnetosphere; Magnets; Powders; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1973.1067680

Filename

1067680