Characterization of DLC Thin Films Deposited by DC-Pulsed PACVD using Methane Precursor
Publish place: International Journal of Advanced Design and Manufacturing Technology، Vol: 15، Issue: 1
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ADMTL-15-1_006
تاریخ نمایه سازی: 6 اردیبهشت 1401
Abstract:
In this work, Diamond Like Carbon (DLC) thin films were deposited on aluminum alloy ۶۰۶۱ by Plasma-Assisted Chemical Vapor Deposition (PACVD). Nitiding prior to coated leads to appropriate hardness gradient and it can greatly improve the mechanical properties of the coatings. The composition, crystalline structure and phase of the films were investigated by Grazing Incidence X-ray Diffraction (GIXRD). Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM) were employed to observe the morphology and structure of the film. The DLC layer exhibited a columnar structure. The adhesion force between the film and the aluminum alloy ۶۰۶۱ was ۳۰.۸ Mpa. The DLC film was determined by the pull of test. The hardness of the DLC film was ۱۲.۷۵ Gpa. The improvement of the adhesion DLC was attributed to a less gradient hardness configuration. In addition, the mean friction coefficient of the films was about ۰.۲ determined by nanoindentation test. According to the results, the high and unique hardness of this coating leads to increase of the wear resistance and thus the useful life of parts.
Authors
seyed mohammad mahdi shafiei
Department of Mechanical Engineering, West Tehran branch, Islamic Azad University, Tehran, Iran Department of Mechanical Engineering, Roudehen branch, Islamic Azad University, Roudehen, Iran
Hamed raeiesifard
Department of Mechanical Engineering, West Tehran branch, Islamic Azad University, Tehran, Iran E-mail: raeiesifard.ha@wtiau.ac.ir
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