Overview on bonded magnets realization, characterization and adoption in prototypes

In the paper bonded magnets materials, their realization and adoption in electromechanical devices, are presented and evaluated. In particular the effects of different process parameters in their realization are deeply analyzed and described, supported by practical activities. Bonded magnets have been tested in various prototypes of rotating electrical machines and magnetic sensors; experimental results, comparing the performance of the devices equipped with these materials, with the original ones are presented. Furthermore a new magnetic material family is being explored, the Hybrid Magnetic Composites (HMC); they are prepared with both soft and hard magnetic powders, properly mixed with binders, and some examples of adoption in practical applications are proposed.