The synergistic effect of carbon materials on properties of copper-based friction materials
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 23 September 2020
Issue publication date: 1 February 2021
Abstract
Purpose
This study aims to investigate the effect of combined use of granular graphite and petroleum coke on the properties of copper-based friction materials and the friction and wear mechanisms.
Design/methodology/approach
Copper-based friction materials with different proportions of petroleum coke and granular graphite were prepared by using powder metallurgy. The friction surfaces were analyzed.
Findings
Changing the ratio of petroleum coke/granular graphite affects the formation of oxides and sulfides on the surface of the materials. Increasing the petroleum coke promotes the production of metal sulfide and sulfate in the friction materials and reduces coefficient of friction (COF) and wear. Increasing petroleum coke also increases the amount of carbonic oxide (CO) released during the braking process and promotes the reduction process of iron oxide on the friction surface.
Originality/value
The synergistic effect of carbon materials on copper-based friction materials was studied in terms of the tribological chemical reaction. This research provides useful information for the selection of carbon materials in friction materials.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2020-0075/
Keywords
Acknowledgements
This work is supported by the project of the R&D plan (2016YFB0700302).
Citation
Xueyang, L., Rutie, L., Lin, W., Zhengzhou, L., Xiang, X., Ning, L. and Jie, C. (2021), "The synergistic effect of carbon materials on properties of copper-based friction materials", Industrial Lubrication and Tribology, Vol. 73 No. 1, pp. 170-176. https://doi.org/10.1108/ILT-02-2020-0075
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited