نوع مقاله : مقاله کامل پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
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).
کلیدواژهها English