Effect of mullite on the friction stability of carbon fiber-reinforced friction material
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 2 August 2024
Issue publication date: 28 October 2024
Abstract
Purpose
The purpose of this paper is to investigate the effect of mullite on the mechanical properties and friction of carbon fiber (CF)-reinforced friction material.
Design/methodology/approach
CF-reinforced friction materials with varying content of mullite were fabricated by hot press molding, and then the tribological properties were tested on the MRH-3-type tribometer under ambient conditions with the ring-on-block configuration.
Findings
The experimental results indicated that the addition of mullite increased the density and compressive strength of friction material. However, the flexural strength of friction material decreased by 16% with the addition of 15 Wt.% mullite. The friction coefficient was proportional to the mullite content. Friction material with 12.5 Wt.% mullite showed the highest friction stability under different loads, whereas friction material with 10 Wt.% mullite exhibited the highest friction stability under different sliding speeds.
Originality/value
By boosting the resistance to deformation under load and increasing the specific heat capacity, mullite contributed significantly to the friction stability of the friction material.
Keywords
Acknowledgements
The authors would like to acknowledge the financial support from the National Science Foundation of the Jiangsu Higher Education Institutions of China (No. 23KJB430006).
Citation
Cai, P., Zhang, P., Xiao, X., Yang, W., Wu, X., Ni, L. and Zheng, F. (2024), "Effect of mullite on the friction stability of carbon fiber-reinforced friction material", Industrial Lubrication and Tribology, Vol. 76 No. 7/8, pp. 953-960. https://doi.org/10.1108/ILT-04-2024-0136
Publisher
:Emerald Publishing Limited
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