Journal of Advanced Materials and Technologies

Journal of Advanced Materials and Technologies

A Study on the Role of Hydrocarbon Precursor on Structure of Diamond-Like Carbon Coating Applied by Ion Beam Deposition Technology

Document Type : Original Reaearch Article

Authors
Saeid Mersagh Dezfuli 1
Seyed Hojatollah Hosseini 2
1 PhD. Student, Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.
2 Assistant Professor, Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.
10.30501/jamt.2024.473494.1304
Abstract
In the present study, Diamond-Like Carbon (DLC) coating was applied using two hydrocarbon precursors, methane (CH4) and acetylene (C2H2) through the PVD-IBD process. Raman spectroscopy and nano-indentation analyses were conducted to study the effect of hydrocarbon precursor on the structural and mechanical properties of the DLC coatings. Additionally, Field Emission Scanning Electron Microscopy (FESEM) and Atomic Force Microscopy (AFM) were employed to investigate the surface morphology and topography of the created coatings. The results from Raman analysis revealed a smaller ID/IG ratio and a larger FWHM for the DLC coating synthesized with acetylene hydrocarbon precursor. Cross-sectional FESEM images of the resulting coatings demonstrated a higher deposition rate of carbonaceous species when using the acetylene precursor. Further, AFM analysis showed that the surface roughness of the DLC coating produced with acetylene hydrocarbon precursor was lower than that obtained with methane. Finally, nano-indentation testing indicated that the DLC coating created using acetylene gas source (C2H2) exhibited higher hardness (H) and elastic modulus (E). 
Keywords
Diamond-like Carbon
PVD-IBD Process
Raman
Hydrocarbon Precursor

Subjects

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Journal of Advanced Materials and Technologies
Volume 13, Issue 3
Summer 2024
Pages 63-74

  • Receive Date 15 August 2024
  • Revise Date 25 September 2024
  • Accept Date 17 December 2024