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MAGNET MOLDING, MAGNETIC MEMBER, METHOD FOR MANUFACTURING MAGNET MOLDING, AND METHOD FOR MANUFACT

2025-06-17 18:452640下载
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There is provided a compact for a magnet which can produce a magnetic member having high coercive force. The compact for a magnet is produced by compression-molding a rare earth-iron-based alloy powder containing a plurality of particles of a rare earth-iron-based alloy containing a rare earth element and iron, wherein the rare earth-iron-based alloy satisfies configurations (a) to (c) below and has 5% by volume or more and 20% by volume or less of voids formed therein. (a) Having a structure containing 10% by mass or more and 30% by mass or less of Sm, 10% by mass or less of Mn, and the balance consisting of Fe and inevitable impurities. (b) A composition, Sm2MnxFe17-x (x = 0.1 or more and 2.5 or less). (c) An average crystal grain diameter of 700 nm or less.


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