Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2010-07-01

Journal: INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS

Included Journals: Scopus、EI、SCIE

Volume: 28

Issue: 4

Page Number: 544-549

ISSN: 0263-4368

Key Words: Diamond-like carbon films; Nanocomposite films; Arc ion plating; Nano-diamond

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. (C) 2010 Elsevier Ltd. All rights reserved.