Please use this identifier to cite or link to this item:
https://essuir.sumdu.edu.ua/handle/123456789/80043
Or use following links to share this resource in social networks:
Tweet
Recommend this item
Title | Boron-carbon coatings: structure, morphology and mechanical properties |
Authors |
Kulesh, Е.А.
Piliptsou, D.G. Rogachev, A.V. Hong, J.X. Fedosenko, N.N. Kolesnyk, Vitalii Oleksandrovych |
ORCID |
http://orcid.org/0000-0002-0417-3801 |
Keywords |
composite carbon coatings boron-doped atomic force microscopy X-ray photoelectron microscopy Raman spectroscopy microhardness scratch |
Type | Article |
Date of Issue | 2020 |
URI | https://essuir.sumdu.edu.ua/handle/123456789/80043 |
Publisher | Sumy State University |
License | Creative Commons Attribution - NonCommercial 4.0 International |
Citation | Kulesh Е. А., Piliptsou D. G., Rogachev A. V., Hong J. X., Fedosenko N. N., Kolesnyk V. (2020). Boron-carbon coatings: structure, morphology and mechanical properties. Journal of Engineering Sciences, Vol. 7(2), pp. C1–C9, doi: 10.21272/jes.2020.7(2).c1 |
Abstract |
Boron-doped carbon coatings have been produced by a method combining the deposition of a pulsed carbon plasma coating and a boron flow formed as a result of the evaporation of a boron target by pulsed YAG: Nd3+ laser irradiation. Phase, chemical composition, structure, and mechanical properties of composite boron-carbon coatings have been determined. Changes in the coatings’ roughness depending on the boron concentration have been established using atomic force microscopy. It has been shown that the grain size is on the rise with increasing boron concentration. Raman spectroscopy has revealed that at a boron concentration of 43.2 at. %. There is a sharp increase in the ID/IG ratio, which indicates the carbon component’s graphitization. Low ID/IG ratios are observed in the coating at low boron concentrations (no more than 17.4 at. %), suggesting a high content of carbon atoms with sp3 bond hybridization. The coating studies, carried out by X-ray photoelectron microscopy, showed that boron could be in a free state or in the form of carbide or oxide depending on the concentration in the coating. In this case, with an increase in boron concentration, there is a decrease in the concentration of carbon atoms in the state with sp3 bond hybridization, accompanied by an increase in the number of B-C bonds and a reduction in the boron concentration not associated with carbon and oxygen. These coating and chemical composition features determine the boron concentration’s established non-monotonic nature on their microhardness, elastic and mechanical properties. |
Appears in Collections: |
Journal of Engineering Sciences / Журнал інженерних наук |
Views
Australia
1
Belarus
1203546240
Belgium
-1832910729
Brazil
979299306
China
1203546244
Egypt
1
France
1
Germany
1203546245
Greece
2405
Hong Kong SAR China
1
India
1914773138
Iran
1802711523
Ireland
287321
Italy
1
Lithuania
1
Netherlands
283
Norway
979299312
Seychelles
1
Singapore
1
South Korea
-441745595
Sweden
47508
Taiwan
-1832910726
Turkey
124159116
Ukraine
-1919127005
United Kingdom
1914773136
United States
-441745594
Unknown Country
120841644
Vietnam
2403
Downloads
Belarus
1203546241
Canada
329255243
China
1203546242
Germany
135482814
India
1914773139
Iran
1802711524
Lithuania
1616488
South Africa
3580262
South Korea
124159130
Sweden
1
Turkey
1
Ukraine
329255242
United Kingdom
1
United States
-441745593
Unknown Country
-441745599
Vietnam
1
Files
File | Size | Format | Downloads |
---|---|---|---|
Kulesh_jes_2_2020.pdf | 1.21 MB | Adobe PDF | 1869467841 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.