Gerbig, Y. B., Ahmed, S. I. -U. and Chetwynd, D. G. (Derek G.), 1948-. (2008) Friction and wear behaviour of pyramidal nanoscaled surface features. Wear, Volume 265 (Numbers 3-4). pp. 497-506. ISSN 0043-1648

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Abstract

This study reports on the friction and wear behaviour of nanoscaled pyramidal surface features of chromium nitride thin films in relation to the dimensions of those features. The pyramidal features were created, and their size controlled, by PVD based in-process structuring. Microtribological tests analysed both the evolution of wear-induced surface alterations and the correlated evolution in the coefficient of friction as functions of normal load and duration of the loading. Results indicate that the severity of wear diminishes tremendously with increasing feature size when tested at the same normal load. So, wear-induced damage similar to that seen on surfaces with small-sized features was observed for the largest surface features tested only after a 100 times longer test duration. The less severe wear of the largest pyramids leads also to friction up to 75% lower compared to surfaces with the smallest features. (C) 2007 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Nanostructures, Chromium compounds, Tribology, Friction
Journal or Publication Title:	Wear
Publisher:	Elsevier Science SA
ISSN:	0043-1648
Date:	31 July 2008
Volume:	Volume 265
Number:	Numbers 3-4
Number of Pages:	10
Page Range:	pp. 497-506
Identification Number:	10.1016/j.wear.2007.11.017
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
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URI:	http://wrap.warwick.ac.uk/id/eprint/29860

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