Magnetically Hard Materials refer to materials with wide hysteresis loops, high coercive force, high remanence, and can maintain constant magnetic properties once magnetized, also known as permanent magnet materials.
They mainly include:
Rare earth permanent magnet materials, such as NdFeB rare earth alloy permanent magnet materials.
Metal permanent magnet materials, such as AlNiCo and FeCrCo.
Ferrite permanent magnet materials, such as barium ferrite and strontium ferrite, etc.
Other permanent magnet materials, such as micro powder permanent magnet materials, nano permanent magnet materials, plastic permanent magnet materials, machinable permanent magnet materials, etc.
