Abstract
This article deals with the role of graphite in friction materials on fade and recovery (F & R) properties especially in the context of its origin and particle size. Two series of composites with identical composition differing only in the type of graphite were developed and evaluated for their performance. These two series of composites, designated as SN and SS, were based on natural and synthetic graphites (of the same crystallinity ~75%), respectively and contained graphites which differed in particle size (460, 130, and 20 μm in SN and 460, 160, and 35 μm in S S). These friction composites were evaluated for their F & R performance following ECE R-90 regulation. The μ-performance, μ-fade, and μ-recovery were significantly influenced by the nature and particle size of graphites. It was observed that natural graphite was more effective to boost the μ-performance than the synthetic graphite. The fade property remained appreciably unaffected by the particle size in the series SN whereas in SS the fade resistance tended to increase with the decrease in particle size. The disc temperature rise in SS was observed to be larger than that in SN. Worn surface analysis by SEM proved to be useful in understanding the wear mechanisms.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
