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標題: Thermal stability of Cr-doped diamond-like carbon films synthesized by cathodic arc evaporation
作者: Chiu, M.C.
Hsieh, W.P.
Ho, W.Y.
Wang, D.Y.
Shieu, F.S.
關鍵字: diamond-like carbon;cathodic arc evaporation;oxidation;microstructure;deposition;coatings
Project: Thin Solid Films
期刊/報告no:: Thin Solid Films, Volume 476, Issue 2, Page(s) 258-263.
Cr-doped diamond-like carbon (DLC) films were synthesized using a cathodic arc evaporation (CAE) process. The thermal oxidation behavior of Cr-doped DLC films was investigated using thermal gravimetric analysis (TGA) and differential thermal analysis (DTA). The phase identification and microstructural examinations were conducted by X-ray diffraction, scanning electron spectroscopy (SEM), transmission electron spectroscopy (TEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) in order to understand the characteristics of Cr-doped DLC films. The as-deposited Cr-doped DLC film exhibits a lamellar structure observed by TEM. A significant weight loss of film results from the thermal oxidation of carbon occurred at 290 to 342 degrees C. At the temperature higher than 342 degrees C, slight weight gain of specimen was observed due to the thermal oxidation of the underlying CrCxNy and CrN interlayer. By heat-treated specimens from 200 to 400 degrees C, Raman spectra reveal the increase of I-D/I-G value conforming to the graphitiation process of the Cr-doped DLC films. Finally, surface reactions of the annealed films using XPS analysis were discussed. (c) 2004 Elsevier B.V. All rights reserved.
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2004.09.029
Appears in Collections:工學院

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