Ferrite Magnets Y30BH Block Magnet
Ferrite magnets are metal oxides with ferromagnetic properties. In terms of electrical properties, the resistivity of ferrite is much larger than that of metal and alloy magnetic materials, and it has higher dielectric properties. Ferrite magnetic energy also shows high permeability at high frequencies. As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current. A nonmetallic magnetic material consisting of a magnetic compound oxide (or ferrite) of ferric oxide and one or more other metal oxides. Magnetic force is usually 800-1000 gauss and is often used in speakers, speakers and other instruments.
Block magnets can be produced from many of kinds of magnets, each having varying composition types. Ferrite magnets do not demand anticorrosive protection. They are extremely popular due to their characteristics. They can be used in a wide range of applications due to their high coercivity and low cost.
These days, ferrite is employed in a wide selection of applications. Incidentally, Ferrite influenced the development of a myriad of electronic devices. Square magnets may also have the countersunk screw holes for more compact areas.
In general, the spinel ferrite with high density, uniform grain size and high crystallinity anisotropy can be made into the moment magnetic ferrite. The common moments of magnetic ferrite are: Ceramic materials such as mn-mg, mn-cu, mn-ni, li-mn, li-ni ferrite, etc.
When the content of Fe2O3 in mn-mg magnetoferrite is 40 ~ 50%, the proportion of MgO and MnO is allowed to have a wide selection range. The high content of MnO makes ferrite have a good rectangular hysteresis loop, but it requires a large current when it is excessive and magnetized, which is unfavorable to the core. When the content of Fe2O3 is 43% and MgO: MnO: Fe2O3 is 1:3:3, mn-mg ferrite has the best moment magnetic properties. The introduction of La2O3 as the main rare earth element in the formula is helpful to improve the performance of the ferrite.