Publication

Nanoscale triboactivity: The response of Mo–Se–C coatings to sliding

Silviu Cosmin Sandu
2008
Journal Articles

Abstract

Mo–Se–C films were deposited by sputtering from a carbon target with pellets of MoSe2. In addition to the standard evaluation of their chemical composition, structure, morphology, hardness and cohesion/adhesion, the core objective of this paper was to analyze the tribological behavior of these films, particularly in the high-load regime. The carbon content varied from 29 to 68 at.% which led to a progressive increase of the Se/Mo ratio and the hardness. The friction coefficient of Mo–Se–C coatings clearly decreased with load from 0.15 to 0.05. The excellent friction properties were attributed to the formation of a thin molybdenum diselenide film on the top of the wear track of the coating and on the counterpart surface, while the role of the carbon in the sliding process is only secondary by increasing the coating hardness and thus its wear resistance.

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https://infoscience.epfl.ch/entities/publication/d072be50-1281-409f-84a0-f843ec03cb7f

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Silviu Cosmin Sandu
2008
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d072be50-1281-409f-84a0-f843ec03cb7f

About this result

Related concepts (32)

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A carbon tax is a tax levied on the carbon emissions required to produce goods and services. Carbon taxes are intended to make visible the "hidden" social costs of carbon emissions, which are otherwise felt only in indirect ways like more severe weather events. In this way, they are designed to reduce greenhouse gas emissions by increasing prices of the fossil fuels that emit them when burned. This both decreases demand for goods and services that produce high emissions and incentivizes making them less carbon-intensive.

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Nanoscale triboactivity: The response of Mo–Se–C coatings to sliding

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