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Magnetic properties of Sm5Fe17/Fe composite magnets produced by spark plasma sintering method

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2 Author(s)
Saito, Tetsuji ; Department of Mechanical Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan ; Miyoshi, Hiroya

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Mixtures of powdered Sm5Fe17 melt-spun ribbon and Fe powder were consolidated into bulk magnets by the spark plasma sintering (SPS) method. Although these bulk magnets consisted of the hard magnetic Sm5Fe17 and soft magnetic α-Fe phases, they had a smooth hysteresis loop and exhibited coercivity. Among the magnets studied, the Sm5Fe17/Fe composite magnet with 30%Fe showed a remanence of 94 emu/g with a coercivity of 2.9 kOe.

Published in:

Journal of Applied Physics  (Volume:111 ,  Issue: 7 )