The carbon's solubility into copper is amazingly minimal and for that reason generally floor diffusion and nucleation of carbon atoms are included. For this reason as well as the growth kinetics, the graphene thickness is limited to predominantly a monolayer. The big gain would be that the graphene might be https://www.quora.com/profile/Trevor-Flatcher-2/Advantages-and-Challenges-of-Silicon-Carbide-Specialty-Ceramics-Macrocosm-Materials-Company-Overview-Founded-in-2016