| 简介 |
PROBLEM TO BE SOLVED : To provide a method for producing a magnetic powder of a rare earth magnet alloy having high magnetic properties.
SOLUTION : A method for producing a magnetic powder includes : a reduction step of reducing an oxide precursor of a rare earth magnet alloy by using Ca species to produce a rare earth magnet alloy; and a removing step of changing Ca species remaining in the rare earth magnet alloy after the reduction step to Ca(OH)2 and removing it.
SELECTED DRAWING : None
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