Abstract
A high-coercivity Zn-bonded Sm-Fe-N magnet is synthesized using spark plasma sintering. Optimal post-sinter annealing results in a large coercivity of μ 0H c = 2.75 T. Transmission electron microscopy and atom probe tomography revealed the formation of a Sm-Fe-Zn-N phase on the particle surface and the presence of Fe 3Zn 10 at the grain boundaries, which are believed to be the cause of the enhanced coercivity.
Original language | English |
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Pages (from-to) | 153-156 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 67 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2012 Jul |
Externally published | Yes |
Keywords
- Atom probe tomography
- Coercivity
- Permanent magnet
- Sm-Fe-N
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys