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Bulk FePt/Fe3Pt nanocomposite magnets prepared by spark plasma sintering
(AIP, 2007)
FePt/Fe3Pt bulk nanocomposite magnets have been prepared by the spark plasma sintering of chemically synthesized FePt and Fe3O4 nanoparticles under 100 MPa at 400–600 °C. It was found that the phase transition of the FePt ...
Hard magnetic FePt nanoparticles by salt-matrix annealing
(AIP, 2006)
To transfer face-centered-cubic (fcc) FePt nanoparticles to the face-centered-tetragonal (fct) phase with high magnetic anisotropy, heat treatments are necessary. The heat treatments lead to agglomeration and sintering of ...