DEPENDENCE OF THE MAGNETIC-PROPERTIES OF ZN BONDED SM2FE17NX MAGNETS ON THE PARTICLE-SIZE DISTRIBUTION

Authors
WALL B KATTER M RODEWALD W VELICESCU M
Citation
B. Wall et al., DEPENDENCE OF THE MAGNETIC-PROPERTIES OF ZN BONDED SM2FE17NX MAGNETS ON THE PARTICLE-SIZE DISTRIBUTION, IEEE transactions on magnetics, 30(2), 1994, pp. 675-677
Citations number
12
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
30
Issue
2
Year of publication
1994
Part
2
Pages
675 - 677
Database
ISI
SICI code
0018-9464(1994)30:2<675:DOTMOZ>2.0.ZU;2-U
Abstract
By adjusting the particle size distribution of the Sm2Fe17 alloy-powde r the density of cold isostatically pressed (p = 200 MPa) magnets as w ell as of die-pressed (p = 600 MPa) magnets could be improved up to 72 % of the theoretical density. A remanent polarization and a coercivit y of 0.77 T and 10.8 kA/cm could be achieved for Zn-bonded magnets con taining 5 wt.% Zn. The temperature coefficients of Zn-bonded Sm2Fe17N3 magnets are superior compared to polymer-bonded Nd-Fe-B magnets and a mount to alpha(J(r)) = - 6.06 %/K and alpha(H(cJ)) = - 0.36 %/K.