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Microscopic Frictional Response of Sodium Oleate Self-Assembled on Steel

Kumar, Deepak and Biswas, Sanjay Kumar (2008) Microscopic Frictional Response of Sodium Oleate Self-Assembled on Steel. In: Tribology Letters, 30 (3). pp. 199-204.

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The article peruses the frictional response of an important metal working lubricant additive, sodium oleate. Frictional force microscopy is used to track the response of molecules self-assembled on a steel substrate of 3–4 nm roughness at 0% relative humidity. The friction-normal load characteristic emerges as bell-shaped, where the peak friction and normal load at peak friction are both sensitive to substrate roughness. The frictional response at loads lower than that associated with the peak friction is path reversible while at higher loads the loading and unloading paths are different. We suggest that a new low-friction interface material is created when the normal loads are high.

Item Type: Journal Article
Publication: Tribology Letters
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Keywords: Tribology;Emulsifier;Steel;AFM.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 25 Mar 2010 11:32
Last Modified: 19 Sep 2010 05:58
URI: http://eprints.iisc.ac.in/id/eprint/26510

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