Influence of contact pressure and sliding speed dependence on the tribological characteristics of an activated carbon-epoxy composite derived from palm kernel under dry sliding conditions
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The objective of this work is to investigate the influence of contact pressure and sliding speed on the coefficient of friction and wear of an activated carbon-epoxy composite derived from palm kernel under dry sliding conditions. A wear mode map approach was employed to identify the transitions from mild to severe wear of the composite. The dry sliding test was executed by utilizing a ball-on-disc tribometer at different contact pressures and sliding speeds with a constant sliding distance and operating temperature. The results showed that, regardless of the sliding speed, the friction coefficient and wear rate of the composite increased drastically when a critical limit of contact pressure is exceeded. As for the sliding speed, both the friction coefficient and wear rate increased first and thereafter decreased at a higher speed of 500 rpm. A wear mode map is proposed to classify the boundary from mild to severe wear regimes. The predominant wear failures identified include micro-crack, fine grooves, debonding, delamination, debris, broken carbon, and fracture.
Keywordsactivated carbon agriculture waste palm kernel friction and wear pressure and speed
The author, Dayang Nor Fatin MAHMUD gratefully acknowledges the scholarship from MyBRAIN UTeM for his Master study. This research is supported by the grant from the Ministry of Higher Education Malaysia (Grant number: FRGS/1/2016/TK10/FKMCARE/F00315). In addition, the authors gratefully acknowledge contributions from the members of the Green Tribology and Engine Performance (G-Tribo-E) Research Group.
- Li X, Sawaki T, Kousaka H, Murashima M, Umehara N. Effect of mating materials on wear properties of amorphous hydrogenated carbon (aC: H) coating and tetrahedral amorphous carbon (ta-C) coating in base oil boundary lubrication condition. Journal Tribology 15: 1–20 (2017)Google Scholar
- Shankar S, Mohanraj T, Ponappa K. Influence of vegetable based cutting fluids on cutting force and vibration signature during milling of aluminium metal matrix composites. Journal Tribology 12: 1–17 (2017)Google Scholar
- Yamaguchi T, Shibata K, Hokkirigawa K. Effect of temperature on the dry sliding friction and wear of rice bran ceramics against different counterpart materials. Tribology Transactions in press, https://doi.org/10.1080/10402004.2017.1317376 (2017)
- Palm oil research. http://www.palmoilresearch.org/statistics.html.
- Zamri Y, Shamsul J B. Physical properties and wear behaviour of aluminium matrix composite reinforced with palm shell activated carbon (PSAC). Kovove Mater 49: 287–295 (2011)Google Scholar
- Yusoff Z, Jamaludin S B, Amin M, Zaidi N H A. Sliding wear properties of hybrid aluminium composite reinforced by particles of palm shell activated carbon and slag. Journal of Science and Technology 2(1): 79–96 (2010)Google Scholar
- Chua K W, Abdollah M F B, Ismail N, Amiruddin H. Potential of palm kernel activated carbon epoxy (PKAC-E) composite as solid lubricant: Effect of load on friction and wear properties. Journal Tribology 2: 31–38 (2014)Google Scholar
- Tabor D. Status and direction of tribology as a science in the 80s. In Proceedings of the International Conference Tribology in the 80s, NASA Lewis Research Centre, Cleveland, Ohio, 1983: 1–17.Google Scholar
- Frost H J, Ashby M F. Deformation Mechanism Maps: The Plasticity and Creep of Metals and Ceramics, First ed. Oxford, New York: Pergamon Press, 1982.Google Scholar
- Lim S C, Ashby M F. Overview no. 55 wear-mechanism maps. Acta metallurgica 35(1): 1–24 (1987)Google Scholar
- Standard Test Method for Wear Testing with a Pin-on-Disk Apparatus. ASTM G99-05 (2016)Google Scholar
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