Multi-element composite ferrite material as well as preparation method and application thereof

The invention provides a multi-element composite ferrite material as well as a preparation method and application thereof, and relates to the technical field of ferrite preparation. The preparation method of the multi-element composite ferrite material provided by the invention comprises the following steps: mixing Fe2O3, NiO, MgO, CuO and ZnO to obtain a mixed material; adding water into the mixture for pelletizing to obtain spheres; pre-sintering the ball body to obtain a pre-sintered body; the pre-sintering temperature ranges from 880 DEG C to 1050 DEG C; crushing the pre-sintered body to obtain a granular material; mixing the granular material with a binder, and granulating to obtain a binder-coated granular material; the particles coated with the binder are pressed, and a blank is obtained; and sintering the blank to obtain the multi-element composite ferrite material. The multi-element composite ferrite material prepared by the invention has a relatively low sintering temperature, can be co-fired with a