SMFEN-BASED ANISOTROPIC MAGNETIC POWDER AND BONDED MAGNET, AND METOHD OF PRODUCING SAID POWDER AND MAGNET
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United States of America
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Nov 21, 2024
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Sep 12, 2022
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Sep 12, 2022
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Abstract
A method of producing a SmFeN-based anisotropic magnetic powder, the method including preparing a SmFeN-based anisotropic magnetic powder before dispersion containing Sm, Fe, La, W, R, and N, wherein R is at least one selected from the group consisting of Ti, Ba, and Sr, and dispersing the SmFeN-based anisotropic magnetic powder before dispersion using resin-coated metal media or resin-coated ceramic media. A SmFeN-based anisotropic magnetic powder which contains Sm, Fe, La, W, R, and N, wherein R is at least one selected from the group consisting of Ti, Ba, and Sr, and has an average particle size that is at least 2.0 μm but not more than 4.0 μm, a residual magnetization σr that is at least 152 emu/g, and an oxygen content that is not higher than 0.5% by mass.
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