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Magnetic properties of Pr-Fe-Ti-B nanocomposite magnets produced by spark plasma sintering method

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3 Author(s)
Saito, Tetsuji ; Department of Mechanical Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan ; Ishikawa, Hiroyuki ; Nishio-Hamane, Daisuke

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Amorphous melt-spun ribbons of Pr8Fe86–xTixB6 (x = 0–10) alloys were successfully consolidated into bulk materials by the spark plasma sintering method. X-ray diffraction and transmission electron microscopic studies revealed that the resultant bulk materials consisted of nanosized grains of the α-Fe and Pr2Fe14B phases. The coercivity of the Pr-Fe-Ti-B bulk nanocomposite magnets increased with increasing Ti content. The Pr8Fe80Ti6B6 bulk nanocomposite magnet exhibited a high remanence of 10.2 kG with a coercivity of 4.9 kOe, while the Pr8Fe76Ti10B6 bulk magnet exhibited a remanence of 6.5 kG with a high coercivity of 8.2 kOe.

Published in:
Journal of Applied Physics  (Volume:109 ,  Issue: 7 )

Date of Publication: Apr 2011

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