Title :
Bulk SmCo5/α-Fe composite by plasma pressure consolidation
Author :
Zeng, Q. ; Zhang, Y. ; Bonder, M.J. ; Hadjipanayis, G.C. ; Radhakrishnan, R.
Author_Institution :
Dept. of Phys. & Astron., Univ. of Delaware, Newark, DE, USA
Abstract :
Plasma pressure consolidation (PPC) was used to synthesize exchange coupled composite magnets. The magnets were processed from a mixture of micrometer-size, anisotropic magnetically hard SmCo5 and nanometer size magnetically soft Fe particles. High density magnets were obtained by PPC at a temperature as low as 760°C. The compacted SmCo5/α-Fe composite showed single-phase magnetic behavior.
Keywords :
cobalt alloys; ferromagnetic materials; iron; magnetic hysteresis; nanocomposites; permanent magnets; plasma materials processing; powder metallurgy; samarium alloys; 760 C; SmCo5-Fe; bulk SmCo5/α-Fe composite; compacted SmCo5/α-Fe composite; exchange coupled composite magnets; high density magnets; hysteresis loops; micrometer-size anisotropic magnetically hard SmCo5; nanocomposite hard/soft magnet; nanometer size magnetically soft Fe particles; plasma pressure consolidation; single-phase magnetic behavior; thermomagnetic curves; Iron; Magnetic anisotropy; Magnetic materials; Magnets; Perpendicular magnetic anisotropy; Plasma density; Plasma materials processing; Plasma temperature; Powders; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816711
