Abstract
Air-atomized Zn-22Al superplastic powder and ferromagnetic barium ferrite powder were mixed with various mixing ratio and compacted in a closed-die at room temperature or 250°C. The compacts were magnetized in a strong magnetic field and then converted into a permanent magnet. Magnetic characteristics of the composite material was almost equal to those of conventional plastic magnets. The magnetic composite material, as opposed to the conventional plastic magnets, provides essentially metallic function such as good electric conductivity and re-formability.
