Fig. 5 displays Cr3C2–epoxy
interface with higher magnificent image of Cr3C2/epoxy composite materials.
Between Cr3C2 and epoxy, an obvious interface like a foam film
less than 1 μm exhibits. Although it differs to the interface formed as a
consequence of natural phenomena in multiphase materials, the interface
could enhance the combination of the Cr3C2 and epoxy.