Structure and magnetic properties of Sm(Co0.74Fe0.1Cu0.12Zr0.04)8 melt-spun nanostructured alloys
作者： M. Gjoka , D. Niarchos , K. Giannakopoulos , C. Sarafidis , O. Kalogirou
DOI: 10.1016/J.MSEB.2008.06.003
关键词:
摘要: Abstract Melt-spun ribbons with a composition of Sm (Co 0.74 Fe 0.1 Cu 0.12 Zr 0.04 ) 8 were prepared wheel speed 40 m/s, followed by vacuum heat treatment in the temperature range 650–850 °C, for different durations. X-ray powder diffraction (XRD) results showed that main phase is TbCu 7 -type both, as-spun and annealed ribbons, except small amount α-Fe(Co). The intrinsic coercivity values i H c = 6.9 kOe sample treated at 700 °C 35 min. When annealing time increased more than 30 min, decreases third appears. microstructure ribbon samples was characterised using scanning electron microscopy (SEM) energy dispersive microanalysis (EDAX). Detailed Sm(Co melt-spun correlation between magnetic properties grains size are presented.
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