Abstract
This research is to investigate the influences of carbon nanotube (CNT) containing friction powder prepared through different process parameters on flexural properties and friction performance of organic brake friction materials. Experimental results indicate significant influence on flexural property and friction performance of organic brake friction materials when the modified CNT/friction powders are adopted. Particularly for the specimens adopted the modified CNT/friction powders prepared through 2.0 M concentration of catalyst and 30% C2H2 show the highest flexural strength, better ductility and toughness, most stable friction coefficient, and lowest weight loss. However, too many amorphous carbon clusters and CNTs aggregation derived from higher concentration of catalyst and ratio of C2H2/N2 would cause poor formation of specimens and reduction of reinforcement effectiveness.
Highlights
Many automotive transportation braking systems are adopted organic brake pad against cast iron rotor
It is noted that many carbon nanotube (CNT) dispersed and entwined with a commercial friction powder particle
The formation of these carbon clusters caused the poor formation of the specimen and reduced reinforcement effectiveness. There is another possibility that larger quantities of flustered and aggregate CNTs produced from high C2H2/N2 ratio would cause the poor formation of the specimen. It seems that the well balance in proper concentration of catalyst and ratio of C2H2/N2 could provide the best mechanical and tribological performance of CNT containing specimens
Summary
Many automotive transportation braking systems are adopted organic brake pad against cast iron rotor. Mutlu et al [5,6,7,8] pointed out that a direct proportionality between hardness and wear resistance due to the complexity of composite structure was not found. They indicated that heat treatment application changed the microstructure of the brake lining and increased the hardness and supplied a stable friction coefficient. The high performance brake lining material especially must possess characters of stable friction, reliable strength, and low wear over a wide range of braking conditions. Because of the inherent thermal degradation character of the organic material, a better thermal resistant material is highly demanded
Sign-in/Register to view highlights & summary 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.
