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Short carbon fiber (SCF) reinforced epoxy composites with different SCF contents were developed to investigate their tribological properties. The friction coefficient and wear of the epoxy composites slid in a circular path against a steel pin inclined at 45° to a vertical axis and a steel ball significantly decreased with increased SCF content due to the solid lubricating effect of SCFs along with the improved mechanical strength of the composites. The scanning electron microscope (SEM) observation showed that the epoxy composites had less sensitive to surface fatigue caused by the repeated sliding of the counterparts than the epoxy. The tribological results clearly showed that the incorporation of SCFs was an effective way to improve the tribological properties of the epoxy composites.


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Tribological properties of short carbon fibers reinforced epoxy composites

Show Author's information Nay Win KHUN1He ZHANG1Lee Hoon LIM1Chee Yoon YUE1Xiao HU2Jinglei YANG1( )
School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore

Abstract

Short carbon fiber (SCF) reinforced epoxy composites with different SCF contents were developed to investigate their tribological properties. The friction coefficient and wear of the epoxy composites slid in a circular path against a steel pin inclined at 45° to a vertical axis and a steel ball significantly decreased with increased SCF content due to the solid lubricating effect of SCFs along with the improved mechanical strength of the composites. The scanning electron microscope (SEM) observation showed that the epoxy composites had less sensitive to surface fatigue caused by the repeated sliding of the counterparts than the epoxy. The tribological results clearly showed that the incorporation of SCFs was an effective way to improve the tribological properties of the epoxy composites.

Keywords: friction, wear, epoxy composite, short carbon fiber

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Publication history

Received: 26 November 2013
Revised: 07 January 2014
Accepted: 14 February 2014
Published: 01 April 2014
Issue date: September 2014

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© The author(s) 2014

Acknowledgements

The authors would like to acknowledge the financial support from the Materials Innovation for Marine and Offshore (MIMO) Program with the grant numbers of SERC1123004028 and SERC1123004032 under the Agency for Science, Technology and Research (A*Star) of Singapore.

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