MAGNETIC MATERIAL AND CLEANING METHOD THEREOF

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According to one embodiment of the present invention, a method for cleaning a magnetic material comprises : a step of manufacturing a magnetic powder by sintering a mixture including a rare earth metal precursor, iron, and boron in the presence of calcium; and a step of washing the magnetic powder by using a non-aqueous fatty acid and a hydrocarbon-based organic solvent at room temperature.COPYRIGHT KIPO 2019