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A new strategy to synthesize anisotropic SmCo 5 nanomagnets.
- Source :
-
Nanoscale [Nanoscale] 2018 May 10; Vol. 10 (18), pp. 8735-8740. - Publication Year :
- 2018
-
Abstract
- We report a simple strategy to synthesize anisotropic SmCo5 nanoplates. The strategy involves the pre-synthesis of 125 × 12 nm Sm(OH)3 nanorods and 10 nm Co nanoparticles followed by the self-assembly of these nanorods and nanoparticles into Sm(OH)3-Co nanocomposites. Once embedded in a CaO matrix, the nanocomposite is subjected to high temperature (850 °C) annealing in the presence of Ca, leading to the formation of 125 × 10 nm SmCo5 nanoplates, which are dispersible in ethanol, allowing the alignment in epoxy resin under a 20 kOe magnetic field. The aligned SmCo5 nanoplates show a square hysteresis behavior with room temperature coercivity reaching 30.1 kOe, which is among the highest values ever reported for SmCo5 made from chemical methods. This work provides a new approach to high-performance anisotropic SmCo5 for permanent magnetic applications.
Details
- Language :
- English
- ISSN :
- 2040-3372
- Volume :
- 10
- Issue :
- 18
- Database :
- MEDLINE
- Journal :
- Nanoscale
- Publication Type :
- Academic Journal
- Accession number :
- 29707729
- Full Text :
- https://doi.org/10.1039/c8nr01690a