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Structure and Mechanical Properties of Gradient Metal-Carbon Coatings

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Part of the book series: Lecture Notes in Networks and Systems ((LNNS,volume 53))

Abstract

Gradient coatings were obtained as a result of deposition from the combined titanium plasma fluxes of a DC arc discharge and the flow of carbon ions formed by sputtering a graphite target with an impulse arc discharge. Structure and surface morphology of the coatings were analyzed by Raman spectroscopy and AFM. Mechanical properties were studied by friction (a “sphere-plane” method) and microhardness test (AFFRI DM8 test machine with a Knoop style diamond tip). The dependence between the carbon concentration in the depth of the studied films and their microhardness has been found out. Raman spectroscopy showed that films with high contents of the sp3 phase are formed, the presence of titanium atoms leads to a decrease the size of the carbon sp2 cluster, nitrogen conducts to an increase in the degree of disordering of s2 carbon clusters. It is established that the parameters of friction and wear depend on the structure of the gradient films.

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Acknowledgments

This work was supported by The Belarusian Republican Foundation for Research (project No. T18-KI08, for 2018-2019) and Intergovernmental Cooperation Projects in the National Key Research and Development Plan of the Ministry of Science and Technology of PRC (projects No. 2016YFE0111800, for 2016–2019).

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Correspondence to Alexandr V. Rogachev .

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Rogachev, A.V., Kulesh, E.A., Piliptsou, D.G., Rudenkov, A.S., Hong, J.X. (2019). Structure and Mechanical Properties of Gradient Metal-Carbon Coatings. In: Laukaitis, G. (eds) Recent Advances in Technology Research and Education. INTER-ACADEMIA 2018. Lecture Notes in Networks and Systems, vol 53. Springer, Cham. https://doi.org/10.1007/978-3-319-99834-3_1

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