ABSTRACT
The importance of newly developed permanent magnetic materials in many electro-, magnetomechanical and electronic applications can be attributed to the drastic improvement of the magnetic energy density product and coercive field of the new materials. The rare earth intermetallic phases SmCo5, Sm2Co17 and Nd2Fe14B are the basis for high performance magnets. Rare earth-Co magnets exhibit the highest coercive fields and (Nd,Dy)-(Fe,Co)-B:(M1,M2) magnets show the highest value of energy density product, obtained so far. The influence of the microstructure of the magnets on their magnetic properties will be discussed in this paper.
