Interaction phenomena in polymer bonded permanent magnet powders

Author

Tomka, G.J. ; Bissell, P.R. ; Chantrell, R.W. ; Grady, K.O.

Author_Institution

Dept. of Phys., Southampton Univ., UK

Volume

29

Issue

6

fYear

1993

Firstpage

2869

Lastpage

2871

Abstract

Magnetization measurements are made on polymer bonded melt-spun Nd-Fe-B and on Sm-Co 2:17 powder. Changes in remanence curves with volume fraction of magnetic filler are attributed to changes in the magnetic interaction between particles. Measurements on the remanent states indicate that this interaction increases rapidly with volume fraction at low volume fractions, and slowly at high volume fractions. It is shown that at coercivity, the variation in interaction with the volume fraction is slower than in the remanent state.<>

Keywords

boron alloys; cobalt alloys; coercive force; ferromagnetic properties of substances; filled polymers; iron alloys; magnetic properties of fine particles; magnetisation; neodymium alloys; permanent magnets; powders; remanence; samarium alloys; NdFeB; Sm-Co 2:17 powder; SmCo; coercivity; magnetisation; polymer bonded melt-spun Nd-Fe-B; polymer bonded permanent magnet powders; remanence curves; remanent states; volume fraction; Bonding; Coercive force; Demagnetization; Magnetic domains; Permanent magnets; Polymers; Powders; Remanence; Saturation magnetization; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281080

Filename

281080