| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for obtaining a rare earth-transition metal- nitrogen-based alloy powder having good magnetic property. SOLUTION: This method for producing the rare earth-transition metal- nitrogen-based alloy powder comprises firing the precipitate deposited by reacting a solution containing rare earth and transition metal elements with a substance which is to generate the insoluble salts of rare earth and transition metal elements to obtain an oxide, heating and reducing the oxide in a reducing atmosphere to obtain a raw material powder having a tapped density of 1-1.5 g/cm3, charging it together with a reducing metal in a crucible in a bulk density of 1-1.5 g/cm3, reducing the mixture in a heating vessel in an inert gas atmosphere, vacuum pumping the interior of the heating vessel, heating in a nitrogen atmosphere to perform nitriding, and taking the nitrided powder in water to separate alloy powders.
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