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Chinese Materials Conference

CMC 2017: High Performance Structural Materials pp 899–909Cite as

Effect of Graphite Content on the Tribological Properties of Cu–Graphite–SiO2 Composites

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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.

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Authors and Affiliations

  1. Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Technology, Changchun, 130012, China

    Yifei Ye, Xu Ran, Bozhe Dong & Yanyi Yang

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  1. Yifei Ye
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  2. Xu Ran
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  3. Bozhe Dong
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  4. Yanyi Yang
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Corresponding author

Correspondence to Xu Ran .

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Editors and Affiliations

  1. Chinese Materials Research Society, Beijing, China

    Yafang Han

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© 2018 Springer Nature Singapore Pte Ltd.

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Ye, Y., Ran, X., Dong, B., Yang, Y. (2018). Effect of Graphite Content on the Tribological Properties of Cu–Graphite–SiO2 Composites. In: Han, Y. (eds) High Performance Structural Materials. CMC 2017. Springer, Singapore. https://doi.org/10.1007/978-981-13-0104-9_94

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