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Fine scale characterization of surface/subsurface and nanosized debris particles on worn Cu-10 % Pb nanocomposites

Sharma, Amit S and Biswas, Krishanu and Basu, Bikramjit (2013) Fine scale characterization of surface/subsurface and nanosized debris particles on worn Cu-10 % Pb nanocomposites. In: Journal of Nanoparticle Research, 15 (5). 1675_1-1675_12.

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Official URL: http://dx.doi.org/10.1007/s11051-013-1675-5

Abstract

The identification of the damage mechanisms involved in the wear process demands the finer scale characterization of the surface, as well as the subsurface region of the wear scar region, and to this end, this article discusses the results obtained with Cu-10 wt% Pb-based metallic nanocomposites using a host of characterization techniques, including transmission electron microscopy and ion milling microscopy. Apart from finer scale characterization to understand deformation and cracking during the wear process, X-ray photoelectron spectroscopy analysis of wear debris confirms the occurrence of oxidation of Pb phase to Pb3O4. In order to understand the role of oxides on friction and wear, sliding wear tests in argon were also carried out and such tests did not result in the formation of any tribo-oxides, as confirmed using electron probe microanalysis. Conclusively, oxidative wear is attributed as the dominant wear mechanism in ambient conditions for Cu-10 wt% Pb composite.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: Spark Plasma Sintering; Cu-Pb; Nanocomposites; Wear Resistance
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Francis Jayakanth
Date Deposited: 21 Jun 2013 04:54
Last Modified: 21 Jun 2013 04:54
URI: http://eprints.iisc.ac.in/id/eprint/46723

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