V and N co-doped diamond-like carbon films deposited by pulsed bias arc ion plating

  • Li H
  • Hu J
  • Lin G
 et al. 
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Abstract

V and N co-doped diamond-like carbon (DLC-VN) composite films were deposited on cemented carbide substrates by pulsed bias arc ion plating. The effects of V and N contents on the structures and properties of the films were investigated by X-ray photoelectron spectroscopy (XPS), Raman spectra, grazing incident X-ray diffraction (GIXRD), transmission electron microscopy (TEM) and nano-indentation, respectively. The as-deposited films consist of a DLC-VN nanocomposite, where VN nanograins are embedded in an amorphous carbon matrix. The V and N contents have significant influences on the relative proportion of VN with respect to DLC. A proper concentration of VN nanocrystals in DLC induces even the formation of nano-diamond. The DLC-VN films have higher hardnesses than pure DLC films, which could be attributed to the nanocomposite structure. © 2010 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Arc ion plating
  • Diamond-like carbon films
  • Nano-diamond
  • Nanocomposite films

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Authors

  • Hongkai Li

  • Juan Hu

  • Guoqiang Lin

  • Chuang Dong

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