Ferrite permanent magnets
Ferrite magnets differ from other currently used magnets, as they do not have a metallic character. It is a ceramic material based on iron oxides with poor electrical conductivity. Before the development of rare-earth magnets ferrite magnets were the most commonly used. They are considerably magnetically weaker, their maximum energy product is on the level of about 35 kJ/m3; however, their main advantage is their very low price compared to NdFeB and SmCo magnets. They are used, for example, in electric machines, magnetic separators and magnetic conveyors, where their larger size is accepted. Production for the automotive industry is controlled according to the TS 16949 standard.