NdFeB Magnet And Ferrite Magnet

The mainly advantage of NdFeB permanent magnet is price high and has good characteristics in machine direction. Characteristics of temperature are relatively poor, and easy to powder corrosion. It must improve chemical properties by adjust the chemical composition and the surface treatment method. In order to meet the requirement of practical application that we need.
Ferrite permanent magnet is a kind of metal oxide with ferromagnetic. Compared to metal and alloy magnetic material, the resistivity of ferrite permanent magnet is more large and also has a little high dielectric properties. Magnetic of ferrite magnet also show in the high magnetic permeability at high frequency. So ferrite magnet has been become a non metallic material which is widely used for high frequency weak electric field.
The main differences between NdFeB permanent magnet And ferrite permanent  magnet are as followings:
Magnetic properties of ferrite magnet is worse than  NdFeB magnet, but price is more cheap.
Temperature resistant of the NdFeB permanent magnet is good. However the ordinary NdFeB magnet can only bear 80 degree.
3.Ferrite permanent magnet stability is very good. It is oxide and very stable. NdFeB permanent magnet is alloy and easy to oxidation. So you must coat to protect.