Tribochemical behaviour of the selected mesogenic compound (4-butylcyclohexanoic acid p-hexaoxyphenyl ester) was investigated by means of ball-on-disk machine at ambient and elevated temperatures. To selection of the thermal conditions of tribological tests DSC technique was used and to analyse tribochemical products layered on the wear tracks—SEM/EDS, FTIRM and XPS ones. Obtained results show that the mesogen dissolved in n-hexadecane is an effective antiwear additive which decreases temperature of the lubricant. This is favoured mainly by tribochemical processes.
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The authors express their appreciation to Prof. Roman Dabrowski from Military University of Technology (Warsaw) for mesogen texture investigations. This work was financed by the Polish Ministry of Science and Information Society Technologies under Grant No. 3 T09B 003 26.
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Molenda, J., Makowska, M. Tribochemical behaviour of the selected mesogenic additive in n-hexadecane. Tribol Lett 21, 38–44 (2006). https://doi.org/10.1007/s11249-005-9006-3
- tribochemical products
- boundary layer
- antiwear additive
- liquid crystal
- nematic substance