US2018137960A1PendingUtilityA1
Method for manufacturing magnetic particles, magnetic particles, and magnetic body
Est. expiryFeb 10, 2034(~7.6 yrs left)· nominal 20-yr term from priority
B22F 1/16H01F 7/02B22F 1/065B22F 7/062B22F 1/054B22F 1/145B22F 1/056C22C 2202/02H01F 1/061C22C 33/02B22F 2998/10B22F 2999/00B22F 1/0018B22F 1/0088B22F 1/02B22F 1/0048H01F 41/02Y02P10/25B22F 10/20
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Abstract
Provided is a method for manufacturing magnetic particles, in which an oxidation treatment, a reduction treatment, and a nitriding treatment are performed in that order on raw material particles with a core-shell structure in which a silicon oxide layer is formed on the surfaces of iron microparticles, thereby nitriding the iron microparticles while maintaining the core-shell structure. Due to this configuration, granular magnetic particles with a core-shell structure in which a silicon oxide layer is formed on the surfaces of iron nitride microparticles can be obtained.
Claims
exact text as granted — not AI-modified1 . Magnetic particles being spherical particles each having a core-shell structure in which a silicon oxide layer is formed on a surface of an iron nitride fine particle, wherein the iron nitride fine particle is composed of Fe 16 N 2 .
2 . A magnetic body formed using spherical particles each having a core-shell structure in which a silicon oxide layer is formed on a surface of an iron nitride fine particle, wherein the iron nitride fine particle is composed of Fe 16 N 2 .Cited by (0)
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