Relationship Between Physical Structure and Tribology of Single Soot Particles Generated by Burning Ethylene

Bhowmick, Hiralal and Biswas, SK (2011) Relationship Between Physical Structure and Tribology of Single Soot Particles Generated by Burning Ethylene. In: Tribology Letters, 44 (2). pp. 139-149.

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Abstract

Ethylene gas is burnt and the soot generated is sampled thermophoretically at different heights along the flame axis starting from a region close to the root of the flame. The morphology and crystallinity of the particle are recorded using high resolution transmission electron microscopes. The hardness of a single particle is measured using a nanoindenter. The frictional resistance and material removal of a particle are measured using an atomic force microscope. The particles present in the mid-flame region are found to have a crystalline shell. The ones at the flame root are found to be highly disordered and the ones at the flame tip and above have randomly distributed pockets of short range order. The physical state of a particle is found to relate, but not very strongly, with the mechanical and tribological properties of the particles.

Item Type:	Journal Article
Publication:	Tribology Letters
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Keywords:	Single particle;Carbon;Soot structure;Friction;Wear; Hardness;TEM
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	25 Oct 2011 10:18
Last Modified:	25 Oct 2011 10:18
URI:	http://eprints.iisc.ac.in/id/eprint/41403

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