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Tribological Effects of Multiwall Carbon Nanotube (MWCNT) on Cu Based Hybrid Composite Brake Friction Material for Medium Duty Automotive Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 9, 2018 by SAE International in United States
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Event: International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility
The aim of this work is to investigate the synergistic effect of Multiwall Carbon Nanotube (MWCNT) in a Cu/SiC hybrid composite brake friction material. The brake hybrid composite materials were prepared using copper as a matrix, silicon carbide as a reinforcing fibre, graphite as a solid lubricant and barium sulphate as a filler combined with varying volume percentage (0.0, 0.5, 1.0, 1.5 and 2.0) of Multiwall Carbon Nanotube (MWCNT) by conventional powder metallurgy technique. The prepared brake friction materials are characterized for compression strength, density and hardness to analyze their mechanical properties. The friction and wear behaviour of the composite were carried out using a fully instrumented pin-on-disc (PoD) test rig with linear variable differential transducer for wear rate and strain gauge for friction measurement under dry condition for medium duty applications. The results of this study indicate that the addition of MWCNT in composite brake friction material increases coefficient of friction significantly whereas wear loss of material has shown a decreasing trend with increase in volume percentage of MWCNT. In post-test analysis, the morphology of worn out surfaces, wear mechanisms and compositions of brake friction materials was examined using scanning electron microscope (SEM) with energy dispersive x-ray spectroscopy (EDX). Furthermore, this study also revealed that adhesive wear and delamination mechanisms are predominantly observed on worn-out sample surfaces.
CitationRaja, P. and Ramkumar, P., "Tribological Effects of Multiwall Carbon Nanotube (MWCNT) on Cu Based Hybrid Composite Brake Friction Material for Medium Duty Automotive Applications," SAE Technical Paper 2018-28-0048, 2018, https://doi.org/10.4271/2018-28-0048.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
- Tjong, S.C. and Ma, Z.Y., “Microstructural and Mechanical Characteristics of In Situ Metal Matrix Composites,” Mater. Sci. Eng. R Rep. 29(3-4):49-113, 2000.
- Gewfiel, E., Meniawi, M.A.H.E.L., and Fouad, Y., “The Effects of Graphite and SiC Formation on Mechanical and Wear Properties of Aluminum-Graphite (Al/Gr) Composites,” in 2012 International Conference on Engineering and Technology (ICET), 2012, 1-6.
- Kim, S.J., Cho, M.H., Cho, K.H., and Jang, H., “Complementary Effects of Solid Lubricants in the Automotive Brake Lining,” Tribology International 40:15-20, 2007, doi:10.1016/j.triboint.2006.01.022.
- Reich, S., Carbon Nanotubes (Weinheim: Wiley-VCH, 2004), 33-114.
- Singh, T., Patnaik, A., Gangil, B., and Chauhan, R., “Optimization of Tribo-Performance of Brake Friction Materials: Effect of Nano Filler,” Wear 324-325:10-16, 2015, doi:10.1016/j.wear.2014.11.020.
- Lee, K.J., Hsu, M., Cheng, H., Jang, J.S. et al., “Tribological and Mechanical Behavior of Carbon Nanotube Containing Brae Lining Materials Prepared through Sol-Gel Dispersion and CVD Process,” Journal of Alloys and Compounds, 2008, doi:10.1016/j.jallcom.2008.08.107.
- Mikael, E., Fillip, B., and Staffan, J., “On the Nature of Tribological Contact in Automotive Brakes,” Wear 252:1, 26-2, 36, 2002.
- Cho, M.H., Kim, S.J., Kim, D., and Jang, H., “Effects of Ingredients on Tribological Characteristics of a Brake Lining: An Experimental Case Study,” Wear 258:1682-1687, 2005, doi:10.1016/j.wear.2004.11.021.
- Yafei, L., “A Combinatorial Approach for Automotive Friction Materials: Effects of Ingredients on Friction Performance,” Compos Sci Technol 66:591-598, 2006, doi:10.1016/j.compscitech.2005.05.032.
- Bijwe, J., “Composites as Friction Materials: Recent Developments in Non-Asbestos Fiber Reinforced Friction Materials - A Review,” Polym Compos 18(3), 1997, doi:10.1002/pc/10289.
- Hayer, L.G., Bach, A., Neilsen, G.T., and Morgen, P., “Tribological Properties of Automotive Disc Brakes with Solid Lubricants,” Wear 232:168-175, 1999.
- Cho, M.H., Ju, J., Kim, S.J., and Jang, H., “Tribological Properties of Solid Lubricants (Graphite, Sb2S3, MoS2) for Automotive Brake Friction Materials,” Wear 260:855-860, 2006, doi:10.1016/j.wear.2005.04.003.
- Ted Guo, M.L. and Tsao, C.Y.A., “Tribological Behavior of Self-Lubricating Aluminium/SiC/Graphite Hybrid Composites Synthesized by the Semi-Solid Powder Densification Method,” Compos Sci Technol 60:65-74, 2000.