Abstract
Cu–graphite–SiO2 composites with different graphite content were fabricated by vacuum hot-pressing sintering. Pin-on-disk friction and wear tester was used to carry out the friction test and study the tribological behaviors of Cu–graphite composites. The results show that the fabricated composites had good compactness and the relative density reached 96.2%. With increasing graphite content, the density, hardness and electric conductivity of composites all declined. The friction coefficient and wear rate both declined at first and then increased and obtained the lowest value (0.198 and 1.062 mg/m, respectively) at 15% graphite. The composite with 15% graphite showed the best tribological properties. The wear mechanism of composites with lower graphite content is mainly abrasive wear. The wear mechanism of the composite with 15% graphite is plastic deformation. When graphite content increased to 20%, fatigue wear and delamination turned into the wear mechanism of the composite.
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.
