MnBi permanent magnetic alloy is a kind of material with great attraction

which presents unusual ferromagnetism and different physical properties from other magnets

and has low material cost without rare earth addition.MnBi permanent magnet alloy exhibits magnetocrystalline anisotropy at high temperature and a positive temperature coefficient of coercivity that is different from other magnetic materials

which is expected to become a high-performance permanent magnetic material under elevated temperature application.However

it is still difficult to prepare high-purity MnBi permanent magnetic alloys with high performance due to the overcomplicated phase transition. In view of research on the manufacture process

doping of elements of MnBi permanent magnetic materials

and the films

powders

and bulk materials of composite permanent magnetic materials

the development status and latest research progress of high-performance MnBi permanent magnetic alloys were expounded

which provides foundation for MnBi permanent magnetic materials

and creates the possibility for the realization of modern production.