Cailiao Baohu (Jan 2023)

Study on Self-Healing Growth and Friction Properties of Graphene on Nickel-Based Surface

  • LV Tong-fa, CAO Yang, HE Yong-chun, LV Chao, LU Ji-chao, YU Shi-qi, WU Tao, MU Xin, QIANG Hao, YE Xiao-hui

DOI
https://doi.org/10.16577/j.issn.1001-1560.2023.0014
Journal volume & issue
Vol. 56, no. 1
pp. 88 – 93

Abstract

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To solve the problem of insufficient durability of graphene film with nano-scale thickness in substrate protection， the self-healing process referring to the re-growth of graphene film after damage on a nickel-based surface was studied by heat treatment method. The characterization of microstructure and morphology showed that the graphene could grow again and repair the damaged surface under the conditions of a heat treatment temperature of 700 ℃and a holding time of 5 min. The results of friction test showed that the friction coefficient of the regrown graphene film was 0.05， which was 50%lower than that of the original nickel surface. Meantime， the mechanism of graphene regrowth was explored， and the driving force of graphene regrowth was described clearly. Generally， this research achievements provided experimental basis and theoretical explanation for graphene self-healing field.

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