Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
Properties of ta-C coatings prepared by pulsed cathodic arc source at various distances. / Chepkasov, S.; Zolkin, A.; Piliptsou, D. и др.
в: Journal of Physics: Conference Series, Том 1115, № 3, 032066, 27.11.2018.Результаты исследований: Научные публикации в периодических изданиях › статья по материалам конференции › Рецензирование
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TY - JOUR
T1 - Properties of ta-C coatings prepared by pulsed cathodic arc source at various distances
AU - Chepkasov, S.
AU - Zolkin, A.
AU - Piliptsou, D.
AU - Gladkikh, E.
AU - Kravchuk, K.
PY - 2018/11/27
Y1 - 2018/11/27
N2 - Tetrahedral amorphous carbon (ta-C) coatings have been prepared on silicon substrates by the pulsed cathodic arc source. For the limitation of the heat flux of the carbon plasma to the sample, the diaphragm of 27 mm diameter has been used. The deposition process has been carried out at three different distances between the arc source and the substrate: 150, 215 and 265 mm. The properties of ta-C coatings have been studied by Raman spectroscopy and dynamic nanoindentation techniques. The analysis of Raman spectra parameters has revealed that the concentration of ordered aromatic rings in Csp2 cluster decreases with distance between the arc source and the substrate while the concentration of chain groups increases. Nanoindentation has shown the decrease in nanohardness and Young's modulus with the distance. Nanohardness value falls from 21 GPa to 16 GPa and Young's modulus value goes down from 197 GPa to 177 GPa. So, it's possible to control the formation of ta-C coatings structure by changing distance between the pulsed cathodic arc source and the substrate.
AB - Tetrahedral amorphous carbon (ta-C) coatings have been prepared on silicon substrates by the pulsed cathodic arc source. For the limitation of the heat flux of the carbon plasma to the sample, the diaphragm of 27 mm diameter has been used. The deposition process has been carried out at three different distances between the arc source and the substrate: 150, 215 and 265 mm. The properties of ta-C coatings have been studied by Raman spectroscopy and dynamic nanoindentation techniques. The analysis of Raman spectra parameters has revealed that the concentration of ordered aromatic rings in Csp2 cluster decreases with distance between the arc source and the substrate while the concentration of chain groups increases. Nanoindentation has shown the decrease in nanohardness and Young's modulus with the distance. Nanohardness value falls from 21 GPa to 16 GPa and Young's modulus value goes down from 197 GPa to 177 GPa. So, it's possible to control the formation of ta-C coatings structure by changing distance between the pulsed cathodic arc source and the substrate.
UR - http://www.scopus.com/inward/record.url?scp=85058240930&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1115/3/032066
DO - 10.1088/1742-6596/1115/3/032066
M3 - Conference article
AN - SCOPUS:85058240930
VL - 1115
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 3
M1 - 032066
T2 - 6th International Congress on Energy Fluxes and Radiation Effects 2018, EFRE 2018
Y2 - 16 September 2018 through 22 September 2018
ER -
ID: 17853449