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Influence of physical structure and chemistry of diesel soot suspended in hexadecane on lubrication of steel-on-steel contact

Bhowmick, Hiralal and Majumdar, SK and Biswas, SK (2013) Influence of physical structure and chemistry of diesel soot suspended in hexadecane on lubrication of steel-on-steel contact. In: Wear, 300 (1-2). pp. 180-188.

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Official URL: http://dx.doi.org/10.1016/j.wear.2013.01.101

Abstract

Soot generated from the combustion process in diesel engines affect engine tribology. In this paper, two diesel soot samples; from engine exhaust and oil filter are suspended in hexadecane oil and the suspension is used to lubricate a steel ball on steel flat sliding contact at a contact pressure of 1.3 GPa. The friction and wear of the steel flat are recorded. The data are compared with those recorded when the soot is generated by burning ethylene gas. The rationale for the comparatively poor tribology of diesel soot is explored by quantifying the size and shape of primary particles and agglomerates, hardness of single primary soot particles, the crystallinity and surface and near surface chemistry of soot and interparticle adhesion.

Item Type: Journal Article
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Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Carbon; Sliding Friction; Hardness; Particle Shape; Internal Combustion Engines; AFM
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 17 Jun 2013 07:54
Last Modified: 17 Jun 2013 07:54
URI: http://eprints.iisc.ernet.in/id/eprint/46705

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