The lattice parameters on the graphite block are related to the composition of the material and also depend on the composition of the surface environment and the function of the material. Simply put, only when the lattice is destroyed by an external force, there is a change, such as the Bragg change of the molecules on the single-layer graphite due to tension. Graphene will also have a Bragg change when it is destroyed by extrusion. These several changes can be shown before the graphene Bragg changes. Therefore, graphene has high hardness and low graphene strength, but graphene can obtain extremely high strength.
The subject may wish to check the earliest method of PVD coating to process graphene. After many years of development, the ultra-high strength of graphene is discovered. As shown in the figure, graphene has a huge specific surface area as a coating, which can reach more than 4 square millimeters. Finally, using existing methods, it is possible to create products that are difficult to complete with traditional coatings: such as the interference of carbon nanotubes on traditional coating methods, The strong displacement of single-layer two-layer graphene due to charge conservation, the soluble solvent of single-layer heavy graphene has low strength at room temperature, and the decomposition of multi-layer graphene due to overheating, etc.
Graphene primer protection can not only protect graphene from mechanical and chemical corrosion but also prevent quality problems caused by basic preparation processes such as doping and structural mismatch.
Hardness is not the main attribute for thick and heavy material, but it should be for ore. Due to the limitations of the alchemy process, the production of silicon graphene must meet the requirements of molding and processing. For this process, in addition to the material properties of graphene, similar compatibility requirements must be met. In addition, properties such as electrical conductivity and thermal conductivity will also affect the alloy properties of the material and are more related to the properties of the substrate.