Comparative surface and nano-tribological characteristics of nanocomposite diamond-like carbon thin films doped by silver

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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 sp2-sp3 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 ... continued below

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Zhang, Han-Shen; Endrino, Jose L. & Anders, Andre July 10, 2008.

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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 sp2-sp3 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.

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  • Journal Name: Applied Surface Science; Journal Volume: 255; Related Information: Journal Publication Date: 12/01/2008

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  • Report No.: LBNL-1276E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 943597
  • Archival Resource Key: ark:/67531/metadc898279

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 10, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 28, 2016, 7:06 p.m.

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Zhang, Han-Shen; Endrino, Jose L. & Anders, Andre. Comparative surface and nano-tribological characteristics of nanocomposite diamond-like carbon thin films doped by silver, article, July 10, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc898279/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.