Study of the effect of normal load on friction coefficient and wear properties of CNx thin films
Source abstract
Abstract
The present study reports on the systematic analysis of the friction and the wear behaviors of carbon nitride (CNx) thin films deposited by direct current unbalanced magnetron sputtering. We focus on the normal load dependence on the friction coefficient and wear rate for the sliding friction of the SUJ2 ball with the CNx thin film. The friction coefficient was monitored using a ball-on-disc apparatus with various loads in ambient air. The friction coefficient (μ) increases linearly from ∼0.05 to 0.28 with increasing normal load, while the specific wear rate decreases with an increase in load. The wear rates of the SUJ2 ball ∼1.5 × 10−7 mm3/Nm for μ = 0.05 and ∼5.5 × 10−8 mm3/Nm for μ = 0.28 were observed in the deposited CNx films with the minimum and maximum normal load. The friction and wear mechanisms are discussed in relation to the surface morphology and microstructure of the CNx coatings.
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Research context
OpenAlex topics: Diamond and Carbon-based Materials Research · Metal and Thin Film Mechanics · Lubricants and Their Additives
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Centre for Energy Studies, Indian Institute of Technology Delhi 1 , HauzKhas, New Delhi 110016, India
School of Applied Material Sciences and Engineering, Center for Advanced Plasma Surface Technology, Sungkyunkwan University 2 , 300 ChunChun-dong, Jangan-gu, Suwon 440 746, South Korea
Center for Low-temperature Plasma Sciences, Nagoya University 3 , Nagoya 464-8601, Japan
Department of Mechanical Engineering, Gifu University 4 , Gifu 501 1193, Japan
Department of Mechanical Science and Engineering, Nagoya University 5 , Furo-cho, Chikusa-ku, Nagoya 464 8603, Japan
Thai-Korea Research Collaboration Research Center (TKRCC), STeP, Chiang Mai University 6 , Chiang Mai 50200, Thailand
Funding
National Research Foundation of Korea
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