SmCo permanent magnet / anisotropic

Permanent magnets with intermetallic, ferro-magnetic composition of rare earth materials, in particular samarium (Sm) and cobalt (Co) (further elements are iron (Fe), copper (Cu) and zirconium (Zr)) are anisotropic and are produced by a powder metallurgical sintering process. The main characteristic of RECo magnets is a very high level of energy density. This enables the miniaturisation of systems when compared with ferrite magnets or a higher performance level for systems of similar sizes. Due to their very high coercive field strength, magnets of SmCo are extremely resistant to demagnetisation and electro-magnetic counter fields. Samarium-Cobalt magnets are very hard and brittle, therefore careful machining and handling is advisable to avoid fractures and cracks.