Strong magnet manufacturers tell you what types of ferrite magnets can be divided into? According to the different magnetic properties and application conditions, ferrite can be divided into: gyromagnetic, torque magnetic, soft magnetic, permanent magnetic, piezoelectric magnetic, hard magnetic and other types
1. Gyromagnetic data
The gyromagnetism of magnetic materials refers to the phenomenon that under the effect of two mutually perpendicular steady magnetic fields and electromagnetic wave magnetic fields, although the plane-polarized electromagnetic waves propagate in a certain direction inside the material, their polarization plane will continue to rotate around the direction of propagation. Although metal and alloy materials also have a certain degree of gyromagnetism, they cannot be used because of low resistivity and too large eddy current loss, and electromagnetic waves cannot penetrate into their interior. Therefore, the application of gyromagnetism in ferrite gyromagnetic materials has become a unique field of ferrite. Most of the gyromagnetic materials are combined with waveguides or transmission lines that transport microwaves to form various microwave devices. It is mainly used in electronic equipment such as radar, communication, navigation, and telemetry.
2. Momental magnetic data
This refers to ferrite materials with a rectangular hysteresis loop. Its characteristic is that when there is a small external magnetic field effect, it can be magnetized and become full. After removing the external magnetic field, the magnetism remains the same as when it is full. Such as magnesium manganese ferrite, lithium manganese ferrite and so on. This ferrite material is mainly used in memory cores of various electronic computers, etc.
3. Soft magnetic data
This kind of material is easy to magnetize and demagnetize under a weak magnetic field, such as zinc chromium ferrite and nickel zinc ferrite. Soft ferrite is a kind of ferrite material with wide application, many types, large quantity and high output.
4. Permanent magnet ferrite
A hexagonal compound with uniaxial anisotropy. Mainly barium, strontium, lead three ferrites and their composite solid solutions. There are homosexual magnetism and heterosexual magnetism. Because this kind of ferrite material can still retain strong and stable remanence properties for a long time after the external magnetization field disappears, it can be used to generate a constant magnetic field for the external space. It is widely used, for example, it is used as a permanent magnet in various electric meters, generators, telephones, speakers, televisions and microwave equipment.
5. Piezomagnetic data
This type of material refers to ferrite materials that are mechanically elongated or shortened in the direction of the magnetic field during magnetization, such as nickel-zinc ferrite, nickel-copper ferrite and nickel-chromium ferrite. Piezomagnetic materials are mainly used as transducers for mutual conversion of electromagnetic energy and mechanical energy, and as magnetoelastic elements for ultrasound.
6. Hard magnetic materials
Ferrite hard magnetic materials are not easy to demagnetize after magnetization, so they are also called permanent magnetic materials or permanent magnetic materials. Such as barium ferrite, ferrite and so on. It is mainly used in recorders, pickups, speakers, magnetic cores of various instruments, etc. in telecommunication equipment.