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US 2024/0412904 A1Published application
METHOD FOR MANUFACTURING Mn-Bi BASED SINTERED MAGNET, AND Mn-Bi BASED SINTERED MAGNET MANUFACTURED THEREFROM
AssigneeKorea Institute of Materials Science
InventorsChul Jin CHOI, Jong Woo KIM, Ji Hoon PARK, Nam Kyu KIM, Han kuk JEON
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Abstract
The present disclosure provides a method for manufacturing a Mn—Bi based sintered magnet with a simple process and a Mn—Bi based sintered magnet having excellent magnetic properties such as maximum magnetic energy product manufactured therefrom.
Claims11
A method for manufacturing a Mn—Bi based sintered magnet, comprising steps of:
- preparing a Mn—Bi based magnetic phase powder;
- and
- hot-pressing the magnetic phase powder under a magnetic field to manufacture it into a bulk magnet,
- wherein the magnetic phase powder has a particle size distribution that satisfies the following Equation 1:
- 2.5 μm≤D50≤4.0 μm [Equation 1]
- D50 is an average diameter (μm) of the point where the volume cumulative distribution of the diameter of the magnetic phase powder is 50%.
3 more elements
Dependencies are inferred from the claim text.