Under a state contract No. 02.513.11.3397 with the Federal Agency for Science and Innovations, the Institute of Metal Physics, jointly with the Ural State University and NPP NeoMag, has developed a new low-oxygen technology for production of sintered permanent magnets of R-Fe-B (R = Nd, Dy) alloys. The alloys, which are quickly quenched by the strip casting method without exposure to atmospheric oxygen, are processed following an advanced technology procedure that includes hydrogenation, jet refnement of powders, their texturing in pulsed magnetic feld, hydrostatic compaction, vacuum sintering, and thermal treatment.

The following items were produced: high-energy sintered magnets of ternary Nd-Fe-B alloys; high-coercive magnets of multicomponent (Nd,Dy)-Fe-со-B alloys. The properties of the magnets correspond to the world standards. The technology has been implemented at the FGUP Ural Electromechanical Plant.