Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5441218 | Journal of Non-Crystalline Solids | 2017 | 7 Pages |
Abstract
Amorphous carbon films were formed on nickel/silicon (100) substrates by plasma jet chemical vapor deposition (PJCVD). The carbon films were deposited at atmospheric pressure using an argon-acetylene and argon-hydrogen-acetylene plasma. The plasma composition was analyzed by optical emission spectroscopy (OES). The results indicated that the dominant species in the argon-acetylene and argon-hydrogen-acetylene plasmas were the CH radical and C2 particles. The emission intensities of CH and C2 lines depended on the hydrogen amount in plasma and the distance. Scanning electron microscopy analysis demonstrated that the surface roughness of the coatings decreased with the addition of hydrogen and the increase of distance from 5Â mm to 7Â mm. The oxygen concentration increased with the increase of the deposition distance. The Raman spectroscopy results indicated that the addition of the hydrogen in the argon-acetylene plasma lead to the formation of nano-crystalline graphite films at 5Â mm distance. The increase of the distance from 5Â mm up to 7Â mm stipulated the formation of multiphase SiC/carbon films when the argon-hydrogen-acetylene ratios were 100:2.4:1 and 100:1.2:1.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Liutauras Marcinauskas, Marius Äernauskas, Mindaugas MilieÅ¡ka, Denis Reso,