UNSPECIFIED (2003) Characterisation of engineered surfaces by a novel four-in-one tribological probe microscope. In: 14th International Conference on Wear of Materials, MAR 30-APR 03, 2003, WASHINGTON, D.C..

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Abstract

We present a novel designed multi-function tribological probe microscope (TPM), which has been developed to provide, within one set-up arrangement, measurements of topography, Young's modulus, hardness and friction of a surface. The measurement is based on a point-by-point scanning so values of the four measured functions are linked in space and in time. This enables us to determine whether a surface treatment is effective in influencing its mechanical or tribological properties or how local surface features affect these properties. It is capable of revealing direct correlations between surface structure and mechanical and tribological properties. The TPM is a force-controlled scanning probe which has two precision capacitive sensors, one to measure surface topography and the deformation being made under a required loading force and the other to measure the frictional force between the tip and the surface being scanned. The contact force at the tip is controlled by a magnet/coil force actuator, which applies a constant force in the range 0.01-25 mN. The topography measurement has a range of 15 mum with a resolution of 0.1 nm. The scanning area of 100 mum x 100 mum is a closed loop controlled with an accuracy of 1 nm. Evaluations have been carried out on some specially prepared engineered surfaces such as plasma immersion ion implanted ultra-high molecular weight polyethylene (UHMWPE), rutile surface modified titanium-aluminium-vanadium (Ti-6Al-4V) and austenitic stainless steels (AISI 316). (C) 2003 Elsevier Science B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TA Engineering (General). Civil engineering (General)
Journal or Publication Title:	WEAR
Publisher:	ELSEVIER SCIENCE SA
ISSN:	0043-1648
Date:	August 2003
Volume:	255
Number:	Part 1
Number of Pages:	10
Page Range:	pp. 385-394
Publication Status:	Published
Title of Event:	14th International Conference on Wear of Materials
Location of Event:	WASHINGTON, D.C.
Date(s) of Event:	MAR 30-APR 03, 2003
URI:	http://wrap.warwick.ac.uk/id/eprint/9085

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