Ferrite magnet (also known as ceramic magnet) belongs to non-metallic magnetic materials. It is a composite oxide of magnetic iron oxide and one or more metal oxides. The magnetic force is usually 800-1000 Gauss, which is often used in speakers and other devices. Although the performance of the ferrite magnet is not as good as NdFeB. But with its own advantages, it is also widely used in many fields. Ferrite magnet is also used to make pot magnets.
Ferrite pot(cup) magnet has the following advantages that neodymium pot magnet does not have:
In price, the price of ferrite pot magnet is much cheaper than that of NdFeB.
Ferrite pot temperature resistance is very good, and an ordinary NdFeB(neodymium) pot magnet is usually only 80 degrees, beyond this working temperature it will appear demagnetization.
The magnetic stability of the ferrite cup is very good. It is oxide and very stable. Neodymium-iron--boron is an alloy, which is easy to oxidize and must be protected by the coating.
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