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. 2019 Oct 19;12(20):3425. doi: 10.3390/ma12203425

Figure 3.

Figure 3

Figure 3

Photos of (a) the distribution of chemical elements in a mixture of 94 wt% micron powder tungsten carbide (WC) (red—tungsten) and 6 wt% nanopowder cobalt (Co) (green—cobalt) before processing in ball milling and (b) after processing in a ball mill. (c) SEM image of the mixture after processing in a ball mill.