sintered arc ferrite magnet

Ferrite magnets are sintered permanent magnets composed of Barium or Strontium Ferrite. This class of magnets, aside from good resistance to demagnetization, has the popular advantage of low cost.
Ferrite magnets, also known as ferromagnetic materials, are generally classified into two categories based on their magnetic coercivity, or persistence of internal magnetism: softferrites and hard ferrites. These categorizations do not refer to the actual hardness of the magnets -- both types are brittle ceramics -- but rather their magnetic coercivity. Depending on whether a magnet is soft or hard, it may have different applications. For instance, a hard ferrite magnet might be used in a radio or a hard disk. A soft ferrite magnetic would be used as a transformer core or an electromagnet core.
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