Sm—Fe—N-based magnetic material and manufacturing method thereof

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United States of America

PATENT NO 12080455
SERIAL NO

17475944

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Abstract

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An Sm—Fe—N-based magnetic material according to the present disclosure includes a main phase having a predetermined crystal structure. The main phase has a composition represented by (Sm(1-x-y-z)LaxCeyR1z)2(Fe(1-p-q-s)CopNiqMs)17Nh (where, R1 is predetermined rare earth elements and the like, M is predetermined elements and the like, and 0.04≤x+y≤0.50, 0≤z≤0.10, 0≤p+q≤0.10, 0≤s≤0.10, and 2.9≤h≤3.1 are satisfied). A crystal volume of the main phase is 0.833 nm3 to 0.840 nm3. A manufacturing method of the Sm—Fe—N-based magnetic material according to the present disclosure includes nitriding a magnetic material precursor including a crystal phase having a composition represented by (Sm(1-x-y-z)LaxCeyR1z)2(Fe(1-p-q-s)CopNiqMs)17.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA JIDOSHA KABUSHIKI KAISHA1 TOYOTA-CHO TOYOTA-SHI AICHI 4718571 ?4718571

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichigozaki, Daisuke Toyota, JP 31 93
Ito, Masaaki Anjo, JP 191 1408
Kinoshita, Akihito Mishima, JP 19 21
Sakuma, Noritsugu Mishima, JP 55 138
Shoji, Tetsuya Susono, JP 70 220

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