In accordance with the different magnetic properties and applications, ferrite can be divided into: soft magnetic, permanent magnet, gyromagnetic, moment magnetic, pressure magnetic five types.

Soft magnetic material

Such materials in a weak magnetic field, easy to demagnetization easy demagnetization, such as zinc chrome ferrite and nickel-zinc ferrite. Soft ferrite is currently a wide range of uses, varieties, large quantities, high output of a ferrite material. It is mainly used as a variety of inductive components, such as the filter core, transformer core, radio core, and tape recording and video heads, but also the key material for magnetic recording components.

Permanent magnet ferrite

A compound with hexagonal structure with uniaxial anisotropy. Mainly barium, strontium, lead three ferrite and its composite solid solution. The same sex and magnetic heterosexual points. Due to the disappearance of the magnetizing field of the outside world, the ferrite material still retains a strong constant remanence property for a long time and can be used to generate a stable magnetic field to the outside space. It is widely used, for example, as a constant magnet in various types of electricity meters, generators, telephones, speakers, televisions and microwaves.

Hard magnetic material

Ferrite hard magnetic material is not easy demagnetization after magnetization, therefore, also known as permanent magnetic material or constant magnetic material. Such as barium ferrite, steel ferrite and so on. It is mainly used in telecommunications devices in the tape recorders, pickups, speakers, all kinds of instrument core.

Magnetic material

The magnetization of a magnetic material refers to the phenomenon that a plane polarized electromagnetic wave propagates in a certain direction within a material under the action of two mutually perpendicular magnetic fields and an electromagnetic magnetic field, but its plane of polarization will continue to rotate around the propagation direction. Although the metal and alloy materials also have certain gyromagnetic properties, they can not be used due to the low resistivity and too large eddy current loss so that electromagnetic waves can not penetrate into the interior. Therefore, the ferromagnetic material magneto-magnetic applications, it has become a unique ferrite field. Most of the magnetic material and the microwave transmission waveguide or transmission line composed of a variety of microwave devices. Mainly used in radar, communications, navigation, telemetry and other electronic equipment.

Moment magnetic material

This refers to a ferrite material with a rectangular hysteresis loop. Its characteristic is that when there is a small external magnetic field effect, it can make it magnetized and reach saturation, remove the external magnetic field, the magnetic remains the same as when saturated. Such as magnesium manganese ferrite, lithium manganese ferrite is like this. This ferrite material is mainly used in a variety of electronic computer memory core and so on.

Magnetizing material

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. Magneto-piezomagnetic materials are mainly used as transducers for mutual conversion of electromagnetic energy and mechanical energy, and are used as a magnetostrictive element for ultrasound.