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Effect of resin content on tribological behavior of brake pad composite material

Harun Yanar (Department of Mechanical Engineering, Karadeniz Technical University, Department of Mechanical Engineering, KTU, Trabzon, Turkey)
Hasan Huseyin Ayar (Metisafe® Cleanroom and Biosafety Systems, Ankara, Turkey)
Muhammet Demirtas (Department of Mechanical Engineering, Bayburt Universitesi, Bayburt, Turkey)
Gencaga Purcek (Department of Mechanical Engineering, Karadeniz Technical University, Trabzon-Merkez, Turkey)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 16 October 2018

Issue publication date: 1 April 2020

498

Abstract

Purpose

This paper aims to investigate the effect of straight phenolic resin content on the fade behavior, frictions and wear characteristics of pre-determined brake pad composite matrix having specific amount of barite (BaSO4), rock wool, Kevlar, graphite and magnetite.

Design/methodology/approach

Different amount of resin ranging between 16 and 20 wt. per cent were added by changing only the filler (barite) content of composite matrix. Subsequently, friction and wear behavior of the composite samples were analyzed using a special pin-on-disc type test system developed for brake pad sample. The worn surfaces were investigated by SEM and three-dimensional (3D) surface profilometer.

Findings

The average coefficient of friction (CoF) of composite samples and temperature of the disc surface showed a linear increase with decreasing the resin content. The sample having 20 wt. per cent resin showed the minimum wear rate with smooth worn surface. But the amount of fade is quite high in that sample. Decreasing resin content decreased the fade formation, and the composite with 16 per cent resin brought about the minimum fade formation. As the fade formation is unwanted in brake pad applications, the composite with 16 wt. per cent resin was proposed as the most appropriate one considering the performance parameters related to friction and wear.

Originality/value

This paper optimizes the resin content of composite brake pad materials to achieve the best combination of its tribo-performance and mechanical properties and provides valuable information for scientists and engineers working in that area.

Keywords

Acknowledgements

This research was supported by National Boron Research Institute (BOREN), Turkey, under Grant no: 2014.Ç0419. The authors also thank Metisafe, Inc, Ankara, Turkey, for its help on tribological tests.

Citation

Yanar, H., Ayar, H.H., Demirtas, M. and Purcek, G. (2020), "Effect of resin content on tribological behavior of brake pad composite material", Industrial Lubrication and Tribology, Vol. 72 No. 2, pp. 195-202. https://doi.org/10.1108/ILT-05-2018-0171

Publisher

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Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

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