Improving the adhesion of diamondlike carbon film using laser-induced surface periodic structures
Improving the adhesion of diamondlike carbon film using laser-induced surface periodic structures
复制标题
利用激光诱导表面周期结构提高类金刚石碳膜的附着力
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
T. Kuroda
中科院分区：
文献类型：
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作者：
H. Sawada;K. Kawahara;T. Ninomiya;A. Mori;T. Kuroda
利用线偏振飞秒激光脉冲，在略高于烧蚀阈值的低能量密度下，可以在各种材料上形成栅状微小周期结构。结构的间距与激光波长大致相同。执行激光束的重叠扫描允许在扩展区域上形成周期性结构。通过划痕和销盘实验研究了类金刚石薄膜的周期性结构对类金刚石薄膜在不锈钢、工具钢和烧结碳化钨上附着的影响。发现周期性结构对提高类金刚石薄膜与金属基体的结合力有显著作用。
Grate-shaped minute periodic structures can be formed on various kinds of materials using linearly polarized femtosecond laser pulses with low fluence that is slightly above the ablation threshold. Spacing of the structures is about the same as the laser wavelength. Performing overlapped scanning of the laser beam allows the formation of the periodic structures over an extended area. Scratch and pin-on-disk tests were performed to investigate the influence of the periodic structures on adhesiveness of diamondlike carbon (DLC) film to stainless steel, tool steel, and sintered tungsten carbide. We found that the periodic structures showed remarkable effect on improving adhesion between DLC film and its metal substrates.