摘要
针对石墨烯纳米级厚度对基底保护耐久性不足的问题,通过热处理方法研究了镍基表面石墨烯膜破损后再次生长的自修复工艺。通过结构与形貌的表征表明,在热处理温度为700℃、保温时间5 min条件下,石墨烯可以再次生长,修复破损表面。摩擦实验测试结果显示,再生长的石墨烯薄膜其摩擦系数为0.05,较原始镍表面的降低了50%。同时探索了其再生长的机理,清晰阐述了石墨烯再生长的驱动力。研究成果可为石墨烯自修复领域提供实验基础和理论解释。
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.
作者
吕通发
曹阳
何永春
吕超
鲁继超
于世奇
吴涛
牟鑫
强豪
叶晓慧
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(Xing’an Power Supply Company,State Grid Inner Mongolia Eastern Power Co.,Ltd.,Ulanhot 137400,China;State Grid Inner Mongolia Eastern Power Co.,Ltd.,Hohhot 010000,China;School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China)
出处
《材料保护》
CAS
CSCD
2023年第1期88-93,97,共7页
Materials Protection
基金
国家自然科学基金(61705125)资助。
关键词
石墨烯
自修复生长
摩擦性能
镍基体
graphene
self-healing growth
friction performance
nickel substrate
