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. 2018 Jul 22;11(7):1259. doi: 10.3390/ma11071259

Figure 4.

Figure 4

Scanning electron microscope (SEM) image of Ni-B powder from (a) Run 3, (b) Run 4, (c) Run 6, and (d) Run 8. Higher resolution SEM image shows (c) a cube and (d) sphere shaped morphology consisting of smoothly rounded crystals.