Journal
TRIBOLOGY LETTERS
Volume 21, Issue 1, Pages 39-45Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-005-9006-3
Keywords
tribochemical products; boundary layer; antiwear additive; liquid crystal; nematic substance
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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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