Abstract
The effects of vanadium substitution on the magnetic properties of Sm-Fe-Ti-V melt-spun ribbons and the magnetic properties and microstructure of sintered Sm-Fe-Ti based magnets are reported. The highest coercivity, H c =10.65 kOe, was obtained in a heat-treated melt-spun Sm8 Fe75.5 Ga0.5 Ti8 V8 alloy. This is the highest value of the coercivities reported in alloys with the ThMn 12 -type structure. Bulk magnets were prepared by the usual powder metallurgy technique. However, their highest coercivity (∼2 kOe) was much less than that of the corresponding ribbons. The low coercivity of sintered magnets has been attributed to their nonuniform microstructure.
Original language | English (US) |
---|---|
Pages (from-to) | 4954-4956 |
Number of pages | 3 |
Journal | Journal of Applied Physics |
Volume | 67 |
Issue number | 9 |
DOIs | |
State | Published - 1990 |
ASJC Scopus subject areas
- General Physics and Astronomy