Figure 3. SEM images of the three
Cr3C2-25NiCr powders. (a) Nano, (b)
Micro, (c) NM. EDS analysis of the NM powder shows Zr and Al
contaminants (d).
It is possible to differentiate the NiCr from carbide particles through
EDS mapping, although there is no variation in particle morphology, even
with different compositions, as can be explained from the SEM analysis.
Figure 4 shows EDS mapping of the Micro powder, highlighting a Ni rich
metallic particle with the same morphology of the
Cr3C2.