Magnetic Properties of Sm-Fe-N/Co-B Composite Magnets Prepared by Chemical Reduction

Figure 2

SEM micrograph of Sm-Fe-N/Co-B composite powders prepared by chemical reduction using an aqueous solution of (a) 0.1 mol/l and (b) 0.025 mol/l cobalt sulfate heptahydrate.

(a)

(b)