FIELD: process engineering.
SUBSTANCE: invention relates to powder metallurgy, particularly, to production of sintered permanent magnets of REM-Fe-B system. Material containing Dy and/or Tb and adhered to, at least, a portion of sintered magnet is applied on the surface of said magnet. Thermal treatment is performed to allow dispersion of Dy or Tb into crystalline grain-boundary phase of sintered magnet.
EFFECT: higher magnetic properties.
8 cl, 5 dwg
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