How is the sintered ferrite?

　　Sintered ferrite is the main raw material that includes BaFe12O19 and SrFe12O19, on the basis of magnetic crystal orientation, and it can be divided into different isotropic and anisotropic magnet. Because of its low price and moderate magnetic energy, Sintered ferrite becomes widely used assintered NdFeB magnets.

　　Ferrite magnets are made ​​of ceramic technology, and the texture is relatively hard, which also is brittle materials, ferrite magnets have good temperature resistance and low prices, and has become permanent magnets with more extensive application.

　　From the development history of permanent magnets' materials, at the end of the nineteenth Century, carbon steel's BH max has not reached 1MGOe, and at present, for the foreign production of Nd-Fe-B permanent magnetic materials, its BH has reached above 50MGOe.