| 简介 |
PROBLEM TO BE SOLVED : To provide : an alcoholic solvent, in which FeCo based particles becoming a soft magnetic material are improved, for enhancing properties of a magnetic material using no heavy rare earth elements; and a sintered magnet produced by using the same.
SOLUTION : A slurry comprising FeCo-based particles and a fluoride solution mixed together contains, in an alcohol solvent, 1 to 50 wt.% of FeCo-based particles and 0.001 to 10 wt.% of rare earth fluoride particles, where particle diameters of the FeCo-based particles are from 20 to 200 nm and particle diameters of the rare earth fluoride particles are from 1 to 50 nm. A sintered magnet is produced by mixing the slurry with a Nd2Fe14B-based powder, molding it in a magnetic field and then sintering it.
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