Reorientation Mechanisms of Graphene Coated Copper {001} Surfaces

Engineering the surface orientation of face-centered cubic (fcc) metals to close-packed {111} plane can significantly enhance their oxidation resistance. However, owing synergetic effect energy density (γ˙) and strain (ω), such currently only be achieved by atomic-level thin film epitaxy or monocrystallization polycrystalline metals. In this study, we characterized microstructures pure copper (Cu) foil two types graphene-coated Cu (Gr/Cu) foils observed a 12~14 nm thick reconstructed layer with in high-temperature deposited Gr/{001} surface. Combining statistical results thermodynamic analysis, proposed melting-solidification mechanism for reconstruction from {001} orientation. This process is dominated Gr/Cu interfacial particularly promoted melting. We also validated examining surfaces coated h-BN (hexagonal boron nitride) amorphous carbon. Our findings suggest possible strategy properties fcc via engineering crystallography.