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Orhan, O., Haffner-Staton, Ephraim, La Rocca, Antonino and Fay, Mike W. (2016) Characterisation of flame-generated soot and soot-in-oil using electron tomography volume reconstructions and comparison with traditional 2D-TEM measurements. Tribology International, 104 . pp. 272-284. ISSN 1879-2464

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Abstract

This work characterises soot nanoparticles by electron tomography using Weighted Back Projection algorithm and appraises the uncertainties in two-dimensional calculations by comparison with 3D parameters for flame-generated soot and diesel soot-in-oil. Bright field TEM was used to capture 2D images of soot. Large uncertainties exist in 2D-measured morphological parameters. The flame-generated particle showed an extensive 3D structure while the soot-in-oil was notably two-dimensional. Morphological parameters of flame-generated soot and diesel soot-in-oil were different; primary particles, volume, and surface area varied significantly over the range of viewing angle, with differences as large as 60%. 2D flame-generated soot volume underestimated 3D measurements by 38%; soot-in-oil 2D and 3D-derived volumes were within 4%. 2D calculations of fractal dimension generally underestimate the 3D value.

Item Type:	Article
Keywords:	Soot Characterisation, 2D-TEM, Fractal Dimension, Electron Tomography, Volume Reconstructions
Schools/Departments:	University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number:	10.1016/j.triboint.2016.09.015
Depositing User:	Eprints, Support
Date Deposited:	08 Sep 2016 08:53
Last Modified:	14 Jan 2018 19:24
URI:	https://eprints.nottingham.ac.uk/id/eprint/36362

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