If you've ever purchased a NdFeB magnet, you surely know that almost all NdFeB magnets have a coating, so why don't ferrite magnets need a coating? First of all, let us know about ferrite magnets, which are non- metallic magnetic materials, also known as magnetic ceramics, so there is basically no corrosion problem. It can be seen everywhere in life. For example, the speaker magnet in the radio is...
Have you heard of isotropic magnets and anisotropic magnets? What are the connections and differences between them? In simple terms, magnetic materials fall into two categories. One is an isotropic magnet, which has the same magnetic properties in any direction and can be magnetized in any direction. The other type is anisotropic magnets. Anisotropic magnets have different magnetic properties in d...