Synthesis of Magnetite Nanoparticles by Top-Down Approach from a High Purity Ore

Figure 3

SEM images of magnetite particles after grinding with different sized grinding balls (a) MAG-Ole-Grd-1, (b) MAG-Ole-Grd-2, (c) MAG-Ole-Grd-4, and (d) MAG-Ole-Grd-5 obtained using HITACHI SU6600 scanning electron microscope.

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