Wear and frictional performance of betelnut fibre-reinforced polyester composite

Gill, N. Singh and Yousif, B. F. (2009) Wear and frictional performance of betelnut fibre-reinforced polyester composite. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 223 (2). pp. 183-194. ISSN 1350-6501


The current work is an attempt to use betelnut fibres as reinforcement for tribopolyester composite. The composite was fabricated using hand lay-up technique. It consists
of 13 layers of randomly distributed betelnut fibre mats and 15 layers of polyester. Wear and frictional behaviours of the compositewere studied against a polished stainless steel counterface using a newly developed block-on-disc machine.Testswere conducted at 2.8 m/s sliding velocity,
different applied loads (5–30 N), and sliding distances (0–6.72 km). In addition, the orientation of the fibre mats, with respect to the sliding direction of the counterface, was considered, i.e. antiparallel (AP-O), parallel (P-O), and normal (N-O).The wornsurface morphology was studied using a scanning electron microscope. Optical microscopy was used to observe the wear track surface on the counterface. In addition, the modifications on the counterface roughness were studied. This work revealed that the presence of betelnut fibre in the matrix, namely P-O, enhanced the wear and frictional performance of the polyester by about 98 and 73 per cent. Applied load has
less effect on the specific wear rate and friction coefficient of the composite, especially in P-O
and AP-O. The composite behaved differently in N-O in which the wear and friction increased when the applied load and sliding distance increased. The composite exhibited higher wear performance in P-O compared with AP-O followed by N-O. In N-O, poor support of the fibres to the resinous was observed, i.e delamination, pullout, and breakage in the fibres. In AP-O, the wear mechanism was predominated by plastic deformation, micro- and macro-cracks in the resinous regions associated with pullout, and breakage of the fibre. In P-O, debonding of fibres was the main wear mechanism.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to paper due to publisher's copyright restrictions.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 14 Sep 2010 04:53
Last Modified: 16 Oct 2014 22:41
Uncontrolled Keywords: betelnut fibre, polyester composite, mat orientations, wear and frictional
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091210 Timber, Pulp and Paper
09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
09 Engineering > 0912 Materials Engineering > 091206 Glass
09 Engineering > 0913 Mechanical Engineering > 091309 Tribology
09 Engineering > 0912 Materials Engineering > 091208 Organic Semiconductors
09 Engineering > 0913 Mechanical Engineering > 091304 Dynamics, Vibration and Vibration Control
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0913 Mechanical Engineering > 091308 Solid Mechanics
Identification Number or DOI: 10.1243/13506501JET516
URI: http://eprints.usq.edu.au/id/eprint/8321

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