选择性键合金属-类金刚石复合薄膜的性能研究
[Abstract]:Aim to investigate the effect of doped metallic elements (Cu,Al,Ti) with selective bond cooperation on the structure and tribological properties of diamond-like carbon (DLC) films. Methods Metallic DLC composite films were prepared on n- (100) single crystal silicon substrates and polished 304 stainless steel substrates by ion source plating with high purity graphite and its composite target with metal. A 514.6 nm Raman spectrometer was used to analyze the Raman spectra of metal DLC composite films. The hardness and residual stress of the film were measured by Knoop hardness meter and surface profilometer. The surface morphology and structure of DLC films were observed by atomic force microscope (AFM) (AFM). The tribological properties of DLC composite films were analyzed by ball-disc sliding wear tester. Results the friction coefficient of diamond-like carbon films was relatively stable after doping with different metallic elements, but the wear rate was different. The content of sp~3 bond in the undoped DLC film is the highest, the hardness of the film is high, the residual stress is large, the surface quality of the Ti-DLC metal composite film is the best, the structure is compact, the residual stress is released and the hardness is high. The wear rate was the lowest, 0.13 脳 10 ~ (-15) mm ~ (-15) 路nm ~ (-1). Conclusion by doping metal elements with different bonding ability in DLC films, the microstructure of DLC films can be regulated, the mechanical properties (hardness, residual stress) of the films can be improved, and the wear resistance of the films can be improved. The tribological properties of the films are related to the microstructure of the films and the existence of metal doped elements.
【作者单位】: 太原理工大学;
【基金】:国家自然科学基金(51502193) 山西省重点研发计划和应用基础项目(201603D421035&201601D021057)~~
【分类号】:TG174.4
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