The Additives and the Magnetic Properties of Permanent Ferrite

The magnetic properties of the permanent ferrite can be strongly improved by a appropriate amount of additives.However, the different additives have different funtions on the magnetic properties in the solid state reaction which can create the crystal structure of the permanent ferrite.This paper systemically analyzes the functions and mechanisms of different additives in the course of sintering, and brings forward the efforts direction that can improve the magnetic properties.