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Magnetic exchange coupling between the hard core and soft shell leads to enhancement of maximum energy product of magnetic core material.
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Summary: Manufacturing process of magnetically hard core – magnetically soft shell magnets. The core/shell magnet comprises a hard strontium ferrite (SrFe12O19: SrM) core and soft Fe-Co shell. Magnetic exchange coupling between the hard core and soft shell leads to enhancement of maximum energy product of magnetic core material.