Ferrite permanent magnet

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Permanent magnets have become indispensable in today’s technology-focused world. The many different magnetic materials and their manifold characteristics have firmly established permanent magnets as important elements in countless application fields. In addition to the proven materials ferrite and AlNiCo, modern magnets are also made from rare earth materials such as neodymium-iron-boron and samarium-cobalt. Even small magnets made from these materials offer strong magnetic force and thereby cater to the growing demand for smaller and stronger magnets. Permanent magnets also play a key role in the growing field of automation technology, where it is essential to continue the development of drives, actuators and sensors. A particular leap in the direction of future technologies was the discovery of the new materials samarium-cobalt and neodymium-iron-boron. Some of the particularly suitable applications are products that can only function with permanent magnets, including e-bikes, electric drives in the automotive sector and hybrid cars. The generation of green energy from wind and hydropower as well as other types of modern generators also depends on the use of permanent magnets. Hard ferrite magnets Hard ferrites are the least expensive and globally most commonly available of all magnetic materials. They are ceramic materials, and thus very hard and brittle. Compared to other metallic materials, the magnetic properties of hard ferrite permanent magnets are fairly weak. Their benefits include lower costs as well as a higher resistance against corrosion and chemicals. They are also easy to magnetize and suitable for many different applications.