Development of nano-columnar carbon coating for dry micro-stamping

Investigation of the Temperature-Related Wear Performance of Hard Nanostructured Coatings Deposited on a S600 High Speed Steel

“…A feasible way to reach these goals is the implementation of thin hard coatings with specific mechanical properties, such as good wear, scratch and corrosion resistance, as well as attractive colors [5,6]. Thin hard coatings have been successfully employed in a variety of applications, from tools, dies, and molds to aerospace and automotive fields [4,[7][8][9][10]. Moreover, the deposition of hard and tough coatings helps prevent brittle failure when tools are subjected to external stresses [11] and, The multilayer structure of the AlTiCrN coating was obtained through a layer-upon-layer deposition in planar mode so that the bond between atoms belonging to different layers was not exactly the same as that existing between atoms of the same horizontal layer.…”

Preparation of porous carbon spheres from porous starch

“…From the Raman spectra in Fig. 6, it can be found that two broad peaks at 1581 cm − 1 (G band) and 1344 cm − 1 (D band), are attributed to amorphous carbon [20,21]. The peak intensity ratio of D band and G band (I D /I G ) is very important for the explanation of graphitization, the lower the I D /I G is, the higher the graphitization degree is.…”

Synthesis and Characterization of Doped and Undoped Nano-Columnar DLC Coating

“…11 This weak solid-beam interaction suggests that the film once deposited, should be modified chemically as a post-treatment to tailor a desirable microstructure. 12 Low energy electrons generate less heat; in fact, maximum temperature rise is still limited by 200 K. 13 Low energy electrons were applied to rearrange the structure during the interface.…”