Effect of surface transformation and transfer layer on friction of carbonaceous hard coatings

Nor Azmmi , Masripan (2013) Effect of surface transformation and transfer layer on friction of carbonaceous hard coatings. PhD thesis, UTeM.

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Abstract

In this thesis, we present the effect of surface transformation and transfer layer on the friction of carbonaceous hard coatings. Carbonaceous hard coatings have been used in recent years as coatings for tribological components; especially for vehicles, in order to reduce friction and wear, which consequently increases the lifespan and working efficiently of components. Carbonaceous hard coatings are used in many industrial applications, due to their excellent tribological properties of low friction, high wear resistance, and chemical inertness. Another essential advantage of carbonaceous hard coatings is that it provides a low friction coefficient; either under dry conditions or boundary lubrication in oil. This particular advantage has attracted more research to understand the tribological behaviour of carbonaceous hard coatings, as a guideline for future usage. Consequently, we performed two experiments; one in dry and the other in oil conditions. In the first experiment, we investigated the effect of the transfer layer on the ultra-low friction of CNx coating under blowing dry Ar. Meanwhile, the second experiment investigated the effect of the transformed layer, in terms of their thickness and hardness on friction under boundary lubrication, in additive-free mineral-based oil.

Item Type: Thesis (PhD)
Uncontrolled Keywords: heat transmission, heat and mass transfer
Subjects: Q Science > QC Physics
Divisions: Library > Tesis > FKM
Depositing User: Salleh Mohd Nor
Date Deposited: 21 Oct 2015 08:51
Last Modified: 21 Oct 2015 08:51
URI: http://eprints.utem.edu.my/id/eprint/15034
Statistic Details: View Download Statistic

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