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research-article

Tribological, mechanical, and microstructural of multiwalled carbon nanotubes/short carbon fiber epoxy composites

[+] Author and Article Information
Oluwatoyin Joseph Gbadeyan

Composites Research Group, Department of Mechanical Engineering, Durban University of Technology, Durban 4001, South Africa
Toyin2good@yahoo.com

Krishnan Kanny

Composites Research Group, Department of Mechanical Engineering, Durban University of Technology, Durban 4001, South Africa
kannyk@dut.co.za

Turup Pandurangan Mohan

Composites Research Group, Department of Mechanical Engineering, Durban University of Technology, Durban 4001, South Africa
Mohanp@dut.ac.za

1Corresponding author.

ASME doi:10.1115/1.4037357 History: Received March 23, 2017; Revised July 12, 2017

Abstract

In the present work, composites were developed with novel combination of particulate fillers and fibers for an automotive brake system. The influence of short carbon fiber on wear rate, coefficient of friction, modulus, compressive strength, hardness, and surface morphology of worn surface were examined. This investigation confirmed that 0.1% multiwalled carbon nanotubes (MWCNTs) reduced wear rate, coefficient of friction for all combinations of composite with carbon fiber. Results indicate that 0.1% (MWCNTs) and 10% short carbon fiber (SCF) filled composite had superior properties. This performance may be attributed to the uniform dispersion of fiber and the synergistic effect of SCF and MWCNTs, acting in concert that formed a more stable structure resulting in a high strength, stiffness, tougher and high-heat absorption. Scanning electron microscopy (SEM) microstructure subsequently performed show change in structural development with a corresponding increase of the incorporation of SCF and MWCNTs, which eventually explained the improved properties of composite.

Copyright (c) 2017 by ASME
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