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The advantages of neodymium iron boron magnets are good mechanical properties and high cost performance. The disadvantage is that the Curie temperature is low, the temperature characteristic is poor, and it is easy to pulverize and corrode. It must be improved by adjusting its chemical composition and surface treatment. In order to meet the requirements of practical applications.

Ferrite is a metal oxide with ferromagnetism. In terms of electrical properties, ferrite has high dielectric properties, and its resistivity is much greater than that of metal ? alloy magnetic materials. The magnetic properties of ferrite also exhibit high permeability at high frequencies. Therefore, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak electricity.

NdFeB is a third-generation rare earth permanent magnet material with small size, light weight and strong magnetism. It is the best magnet with the best cost performance. It is called the king of magnetism in the magnetic field. The advantages of high energy density make NdFeB permanent magnet materials widely used in modern industry and electronic technology. In the bare magnetic state, the magnetic force can reach about 3500 Gauss.

Ferrite, also known as iron oxide or magnetic porcelain, is a non-metallic magnetic material, and is a composite oxide (or orthoferrite) of magnetic iron oxide and one or more other metal oxides. The magnetic force is usually 800-1000 Gauss, which is usually used for speakers, such as speakers?speakers. The main differences between NdFeB magnets and ferrite magnets are as follows:

Ferrite magnets are not as good as neodymium iron boron.

In terms of price, the price of ferrite is much cheaper than NdFeB magnets.

3. The neodymium iron boron magnet is very temperature resistant, while the ordinary neodymium iron boron magnet is usually only 80 degrees. Above this operating temperature, demagnetization will occur.

4. The stability of ferrite is very good. It is the oxide itself, which is very stable. NdFeB magnet is an alloy, easy to oxidize and must be protected by coating.