| Abstract Scope |
With growing interest in two-dimensional nanostructures such as graphene, efforts are being made to control their mechanical, physical, and chemical properties. Therefore, by simply controlling the injection time of the high energy, we investigated a mechanism to enhance the surface hardness by causing the oxidation of CuO or Cu2O from the surface by giving the effect of heat treatment to Cu metal. This process is similar to the conventional synthesis at first glance, but it is a very different approach in that the degree of oxidation can be continuously controlled according to the process variables. These microstructural, chemical, and mechanical characteristics of different samples were confirmed by XRD, XPS, and nano-indentor, respectively. The new method of freely changing the surface properties seems to have a large impact on other fields in the future, both industrially and research. |