Zhang H.-S. , ENDRINO ARMENTEROS, JOSÉ LUIS, Anders A.
Si
Appl. Surf. Sci.
Article
Científica
1.576
0.89
01/01/2008
000261299200001
2-s2.0-56949091603
In this study we have deposited silver-containing hydrogenated and hydrogen-free diamond-like carbon (DLC) nanocomposite thin films by plasma immersion ion implantation-deposition methods. The surface and nano-tribological characteristics were studied by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and nano-scratching experiments. The silver doping was found to have no measurable effect on sp 2 -sp 3 hybridization of the hydrogenated DLC matrix and only a slight effect on the hydrogen-free DLC matrix. The surface topography was analyzed by surface imaging. High- and low-order roughness determined by AFM characterization was correlated to the DLC growth mechanism and revealed the smoothing effect of silver. The nano-tribological characteristics were explained in terms of friction mechanisms and mechanical properties in correlation to the surface characteristics. It was discovered that the adhesion friction was the dominant friction mechanism; the adhesion force between the scratching tip and DLC surface was decreased by hydrogenation and increased by silver doping.
Adhesion; Atomic force microscopy; Carbon films; Deposition; Diamonds; Friction; Hydrogen; Hydrogenation; Ion implantation; Nanocomposite films; Nanocomposites; Plasma applications; Semiconductor doping; Silver; Surface topography; Thin films; Tribology; X ray photoelectron spectroscopy; Coefficient of frictions; Diamond-like carbon nanocomposite; Diamond-like carbon thin films; Nanocomposite thin films; Nanoscratching; Plasma immersion ion implantation deposition; Surface characteristics; Tribological characteristics; Diamond like carbon films