In one embodiment, a permanent magnet has a composition expressed by a composition formula: RN x (Cr p Si q M 1-p-q ) z (R is at least one element selected from Y and rare-earth elements, M is at least one element selected from Fe and Co, and x, p, q, and z are atomic ratios satisfying 0.5¤x ¤ 2.0, 0.005 ¤p ¤ 0.2, 0.005 ¤q ¤0.2, and 4 ¤ z ¤ 13, respectively). The permanent magnet has a density of 6.5 g/cm 3 or more and satisfies the relationship of I(110)/{I(110) +I(303)} ¤ 0.05, in which I(303) represents a diffraction peak intensity from a (303) plane of a Th 2 Zn 17 phase obtained through powder X-ray diffraction of the permanent magnet, and I(110) represents a diffraction peak intensity from a (110) plane of an ±-Fe phase obtained through the powder X-ray diffraction.
PERMANENT MAGNET, ROTARY ELECTRICAL MACHINE, AND VEHICLE
DAUERMAGNET, ROTIERENDE ELEKTRISCHE MASCHINE UND FAHRZEUG
AIMANT PERMANENT, MACHINE ÉLECTRIQUE TOURNANTE ET VÉHICULE
20.09.2017
Patent
Elektronische Ressource
Englisch
PERMANENT MAGNET, ROTARY ELECTRICAL MACHINE, AND VEHICLE
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