The Effect Of Dimple Size On The Tribological Performances Of A Laser Surface Textured Palm Kernel Activated Carbon-Epoxy Composite

Mohmad, Martini and Abdollah, Mohd Fadzli and Tamaldin, Noreffendy and Amiruddin, Hilmi (2017) The Effect Of Dimple Size On The Tribological Performances Of A Laser Surface Textured Palm Kernel Activated Carbon-Epoxy Composite. Industrial Lubrication And Tribology, 69 (5). pp. 768-774. ISSN 0036-8792

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Abstract

Purpose – The purpose of this study is to investigate the effect of dimple size on the tribological performances of laser surface-textured palm kernel-activated carbon-epoxy (PKAC-E) composite. Design/methodology/approach – A PKAC-E disc 74 mm in diameter was fabricated using the hot compression moulding technique. Five different types of surface contacts were prepared using a CO2 laser surface-texturing machine: a non-textured surface, and surfaces with dimples between 500 and 1,200 �m in diameter. The area density, contact ratio and depth were kept constant. A sliding test was carried out using a ball-on-disc tribometer under boundary lubricated conditions with constant sliding speed, sliding distance and applied load. Findings – In general, the results showed that the friction coefficient decreased with an increasing dimple diameter of surface-textured PKAC-E composite. However, the appropriate dimple diameter for maintaining low friction coefficient is proposed in the range of 800 to 1,000 �m. Originality/value – This is the first study, to the authors’ knowledge, to investigate the effects of dimple size, which is larger than 500 �m, on the tribological performances of laser surface-textured PKAC-E composite.

Item Type:	Article
Uncontrolled Keywords:	Wear, Friction, Composites materials, Surface texture
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Mechanical Engineering > Department of Automotive
Depositing User:	Mohd Hannif Jamaludin
Date Deposited:	28 May 2018 07:45
Last Modified:	08 Jul 2021 21:00
URI:	http://eprints.utem.edu.my/id/eprint/20817
Statistic Details:	View Download Statistic

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