Mechanochemical fabrication of iron-graphite composites

The fabrication of iron-graphite composites was investigated using a milling process. Based on the milling time of the process, the average particle size of the host iron particles decreased to 10 μm. The size of the graphite particles decreased to a nanometer scale, resulting in the graphite strongly adhering to the iron surfaces. Raman spectra revealed that the graphite aromatic ring structure disappeared and the iron near-surface layer was changed to iron oxide phases. The dangling bond of the fragmented graphite combined with the oxidized iron surface by interfacial binding to efficiently form the interfacial composites.