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US 2023/0144902 A1Published application
Samarium-iron-nitrogen based magnet and samarium-iron-nitrogen based magnet powder
AssigneeTDK Corporation
InventorsRyuji HASHIMOTO, Yasushi ENOKIDO, Shusuke OKADA, Kenta TAKAGI
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Abstract
A samarium-iron-nitrogen based magnet, wherein a samarium oxide phase is formed on at least a part of a surface of a crystal grain, and wherein an atomic ratio of calcium to a total amount of iron group elements, rare earth elements, and calcium is 0.4% or less.
Claims8
A samarium-iron-nitrogen based magnet,
- wherein a samarium oxide phase is formed on at least a part of a surface of a crystal grain, and
- wherein an atomic ratio of calcium to a total amount of iron group elements, rare earth elements, and calcium is 0.4% or less.
A samarium-iron-nitrogen based magnet powder,
- wherein a samarium oxide phase is formed on at least a part of a surface of a crystal grain, and
- wherein an atomic ratio of calcium to a total amount of iron group elements, rare earth elements, and calcium is 0.4% or less.
Dependencies are inferred from the claim text.