材料科学
复合材料
辐照
聚四氟乙烯
润湿
摩擦学
复合数
表面能
表面改性
硬度
接触角
碳化
化学工程
扫描电子显微镜
物理
核物理学
工程类
作者
Mei Lv,Litao Wang,Jing Liu,Fancong Kong,Ai-Xia Ling,Tingmei Wang,Qihua Wang
标识
DOI:10.1016/j.triboint.2018.12.028
摘要
The carbon fibers (CFs) reinforced polytetrafluoroethylene (PTFE) composites have been modified using proton irradiation, and the surface energy, hardness and tribological properties have been investigated before and after irradiation. The CFs increased the hardness and the wear resistance. Proton irradiation led to defluorination and carbonization of the CF/PTFE composite surface, and decreased the surface wettability and the surface energy. The irradiation depth was 820 nm from the material surface calculated with SRIM software package. In addition, the wear resistance was improved after proton irradiation. Proton irradiation improved the wear resistance of the composite and induced the material transfer from Cu alloy surface to CF/PTFE. These significant improvements could enable potential applications in aeronautics and smart medical materials.
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