Bui, Hong Son
(2019)
Influence of different environement on the tribological behavior of
molybdenum disulfide MoS2.
ijirst, 4
(12).
ISSN 24562165
(In Press)
Abstract
Plastic materials are more and more important in our life. This article measure the thermal properties of some typical plastics materials by using the TMA Q400 machine. By comparision of their results and their chemical formulas will show their properties.
The tribological properties of molybdenite or molybdenum disulphide MoS2 depend on the relative humidity of gases surrounding the tribocontact. In high vacuum environments and in inert gases, the friction coefficient µ of molybdenum disulphide MoS2 is very low about µ=0,02 and in humid environments, the friction coefficient increases to µ = 0,18.
The objective of this study is to present the experimental results of the tribological properties of molybdenum disulfide MoS2 against steel XC48 in different gaseous environments (in high vacuum and ambient air). We calculate the potential energy between the gaseous molecules and the surface of adsorption or between these adsorbed gaseous molecules. We also try to estimate the interactions between the adsorbed gaseous molecules of the gap between the two consecutive layers of the crystal molybdenum disulfide MoS2. We discuss the effect of these interactions on the tribological characteristics of molybdenite MoS2.
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