CPC H01F 41/0266 (2013.01) [B22F 1/00 (2013.01); H01F 1/059 (2013.01); H01F 41/02 (2013.01); B22F 10/32 (2021.01)] | 8 Claims |
1. A samarium-iron-nitrogen based magnet powder, comprising:
a main phase containing samarium and iron; and
a sub-phase containing samarium, iron, and zirconium,
wherein an atomic ratio of a rare earth element to an iron group element is greater than an atomic ratio of the rare earth element to the iron group element of the main phase,
wherein at least a part of a surface of the main phase is coated with the sub-phase
wherein oxygen content of the samarium-iron-nitrogen based magnet powder is in a range from 0.8% by mass to 1.2% by mass, and
wherein the sub-phase has the atomic ratio of the rare earth elements to the iron group elements is 0.50 or more.
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