Effect of magnetic fields on melt-spun Nd2Fe14B-based ribbons
Journal of Applied Physics
Control of magnetic behavior by Pb1-xMnxS nanocrystals in a glass matrix J. Appl. Phys. 111, 064311 (2012) Concentration dependence of magnetic moment in Ce1-xFexO2 J. Appl. Phys. 111, 07B546 (2012) High frequency study of core-shell and uncoated Fe3O4 nanoparticles J. Appl. Phys. 111, 07B542 (2012) Size, surface structure, and doping effects on ferromagnetism in SnO2 J. Appl. Phys. 111, 07C321 (2012) High performance anisotropic NdFeB magnets prepared by dual-alloy die-upsetting The effect of
... ting The effect of a magnetic field on microstructure and magnetic properties of Nd 2 Fe 14 B-based melt-spun ribbons is investigated. The magnetic field was applied in perpendicular or parallel direction to the ribbon plane during quench with a field strength up to several kilo Oersteds. The XRD patterns and TEM graphs show a strong grain size reduction upon the magnetic field application. The magnetic field also enhances the (00l) texture of ribbons when the field is perpendicular to the ribbon plane. The refined microstructure with significantly reduced grain size leads to enhanced magnetic exchange interactions between the hard and soft phases in the Nd 2 Fe 14 B/Fe nanocomposite ribbons. This magnetic field-assisted melt-spinning technique is promising for producing nanocomposite magnets with enhanced energy density.