Imperial College London
Alternate

DrAmirKadiric

Faculty of Engineering, Department of Mechanical Engineering

Reader in Mechanical Engineering
 
 
 
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Contact

 

a.kadiric Website

 
 
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Assistant

 

Mrs Chrissy Stevens +44 (0)20 7594 7064

 
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Location

 

672City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ueda:2021:10.1016/j.wear.2021.203869,
author = {Ueda, M and Kadiric, A and Spikes, H},
doi = {10.1016/j.wear.2021.203869},
journal = {Wear},
pages = {1--10},
title = {Wear of hydrogenated DLC in MoDTC-containing oils},
url = {http://dx.doi.org/10.1016/j.wear.2021.203869},
volume = {474-475},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper describes a study of the effect on MoDTC-promoted a-C:H DLC wear of adding various surface-active additives used in engine lubricants, including ZDDP, an ashless EP additive, Ca detergents, dispersants, an OFM and a PAMA, to an MoDTC solution. Tribofilms formed on wear tracks on steel were analysed using SLIM, TEM, STEM-EDX, Raman spectroscopy and XPS. Relevant mechanisms by which these additives reduce the impact of MoDTC on DLC wear have also been suggested. DLC wear in PAO+Mo can be reduced by the presence of other surface-active additives in three ways. Firstly, asperity contact between DLC and steel can be mitigated by forming thick antiwear tribofilms. Secondly, other additives can increase the ratio of MoS2:MoO3, reducing the amount of wear-enhancing MoO3 in the tribofilm. Thirdly, the amount of MoDTC tribofilm including MoO3 can be reduced by the competitive adsorption of other surface-active additives. This study has practical implications for ways in which DLC surfaces can be protected by lubricant formulation.
AU  - Ueda,M
AU  - Kadiric,A
AU  - Spikes,H
DO  - 10.1016/j.wear.2021.203869
EP  - 10
PY  - 2021///
SN  - 0043-1648
SP  - 1
TI  - Wear of hydrogenated DLC in MoDTC-containing oils
T2  - Wear
UR  - http://dx.doi.org/10.1016/j.wear.2021.203869
UR  - https://www.sciencedirect.com/science/article/pii/S0043164821002581?via%3Dihub
UR  - http://hdl.handle.net/10044/1/87491
VL  - 474-475
ER  -
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