MECHANICALLY ALLOYED SM-FE-N MAGNETS WITH ADDITION OF GA

Authors
VASILYEVA E JANUSZEWSKI D LEONOWICZ M
Citation
E. Vasilyeva et al., MECHANICALLY ALLOYED SM-FE-N MAGNETS WITH ADDITION OF GA, IEEE transactions on magnetics, 33(5), 1997, pp. 3853-3855
Citations number
12
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
5
Year of publication
1997
Part
2
Pages
3853 - 3855
Database
ISI
SICI code
0018-9464(1997)33:5<3853:MASMWA>2.0.ZU;2-U
Abstract
The magnetic properties and microstructure of Sm-Fe-N magnets with add ition of Ga were studied, It was found that the coercivity initially i ncreased and than decreased when Ga content exceeded 0.5 at%. Ga subst ituted Fe in the lattice of Sm2Fe17 phase and formed a (Sm,Ga)-rich ph ase at grain boundaries. Deterioration of the magnetic properties, for Ga contents above 0.5 at%, we attribute to a reduced nitrogen solubil ity in the lattice of the Sm-2(Fe,Ga)(17)N-x phase and lowering of its anisotropy constants.