Sintered Ferrite  of the main raw material including BaFe12O19 and SrFe12O19, according to the orientation of magnetic crystal divided into isotropic and anisotropic magnets.Due to low cost and moderate magnetic properties and become the most widely used as a magnet..Ferrite magnet is made of by ceramic method, texture is relatively hard, it is a brittle material, due to ferrite magnets have good temperature resistance and low cost, has become the most widely used permanent magnets