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Influence of graphite purity concentrations on the tribological performance of non-asbestos organic copper-free brake pads

Influence of graphite purity concentrations on the tribological performance of non-asbestos... This paper aims to discuss the influence of graphite with varying purity on the tribological performance of brake pads.Design/methodology/approachThree distinct brake pads were created within the scope of this experiment by varying the graphite purity without affecting the other components. The brake pads were made using a traditional manufacturing procedure, and industry standards were used to test the chemical, physical and mechanical properties of the newly produced brake pad. A full-scale inertia brake dynamometer was used to determine the material’s tribological characteristics. The worn surfaces of the brake pads were examined using a scanning electron microscope.FindingsThe test results indicate that brake pads containing 99% pure graphite (artificial grade) displayed good physical, chemical and mechanical features, such as consistent friction and a reduced rate of wear because of the lower impurity level, which eliminates frictional undulations.Originality/valueThis paper discusses the influence of graphite purity on the tribological performance of brake pads by modifying tribofilms and reducing friction undulations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

Influence of graphite purity concentrations on the tribological performance of non-asbestos organic copper-free brake pads

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0036-8792
eISSN
0036-8792
DOI
10.1108/ilt-04-2022-0114
Publisher site
See Article on Publisher Site

Abstract

This paper aims to discuss the influence of graphite with varying purity on the tribological performance of brake pads.Design/methodology/approachThree distinct brake pads were created within the scope of this experiment by varying the graphite purity without affecting the other components. The brake pads were made using a traditional manufacturing procedure, and industry standards were used to test the chemical, physical and mechanical properties of the newly produced brake pad. A full-scale inertia brake dynamometer was used to determine the material’s tribological characteristics. The worn surfaces of the brake pads were examined using a scanning electron microscope.FindingsThe test results indicate that brake pads containing 99% pure graphite (artificial grade) displayed good physical, chemical and mechanical features, such as consistent friction and a reduced rate of wear because of the lower impurity level, which eliminates frictional undulations.Originality/valueThis paper discusses the influence of graphite purity on the tribological performance of brake pads by modifying tribofilms and reducing friction undulations.

Journal

Industrial Lubrication and Tribology – Emerald Publishing

Published: Jan 2, 2023

Keywords: Graphite; Brake pad; Brake dynamometer; Purity level; Friction; Wear

References

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