Back to Search
Start Over
Synthesis, structure, and magnetic properties of Nd-Y-Fe-Mo-B bulk nanocomposite magnets
- Source :
- Journal of Applied Physics. 109:07A739
- Publication Year :
- 2011
- Publisher :
- AIP Publishing, 2011.
-
Abstract
- NdxY6−xFe68Mo4B22 (x = 1–5) nanocomposites were prepared directly by the devitrification of amorphous rods. The effects of Y doping on the glass-forming ability, microstructure, and magnetic properties of the alloys were also investigated. GFA of the alloys was found to get enhanced through substituting Nd with Y and to increase with the growth of Y contents. Results also showed that the best glass former was Nd1Y5Fe68Mo4B22 with a critical diameter of 4 mm. The coercivity first increased after subsequent crystallization and then decreased with the reduction of Y content, which was closely related to the phase transition during the crystallization. The devitrified Nd3Y3Fe68Mo4B22 exhibited a maximal coercivity of 364.1 kA/m, resulting from strong exchange coupling between the hard and the soft phases.
Details
- ISSN :
- 10897550 and 00218979
- Volume :
- 109
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Physics
- Accession number :
- edsair.doi...........89224af3c8138c4c7ea6a8a594de25c0