Role of TiC nanocrystalline and interface of TiC and amorphous carbon on corrosion mechanism of titanium doped diamond-like carbon films: Exploration by experimental and first principle calculation

Zhou Yefei; Li Lulu; Hu Tianshi; Wang Qiang; Shao Wei; Rao Lixiang; Xing Xiaolei; Yang Qingxiang

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Role of TiC nanocrystalline and interface of TiC and amorphous carbon on corrosion mechanism of titanium doped diamond-like carbon films: Exploration by experimental and first principle calculation

机译：TIC纳米晶体和非晶碳的作用与无定形碳对钛掺杂金刚石状碳膜腐蚀机理的作用：实验和第一原理计算的勘探

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The corrosion mechanism of Titanium doped Diamond-like carbon (Ti-DLC) films was investigated by electrochemical tests and first-principle calculations. Potentiodynamic polarization curves and Electrochemical impedance spectroscopy (EIS) show that the Ti-DLC films exhibit a poor corrosion resistance than that of pure DLC film in 3.5 wt% NaCl solution. The formed TiC nanocrystalline in Ti-DLC film reduce the migration barrier and energy of Cl atom permeation in the film, which causes a lower total system energy change of the crystal plane TiC, interface structure of TiC and amorphous carbon (TiC/a-C) than that of pure DLC film, and then accelerates the corrosion failure of the Ti-DLC film.

机译：通过电化学试验和第一原理计算研究了钛掺杂金刚石状碳（Ti-DLC）膜的腐蚀机理。电位动力学曲线和电化学阻抗光谱（EIS）表明Ti-DLC膜在3.5wt％NaCl溶液中表现出比纯DLC膜的耐腐蚀性差。 Ti-DLC薄膜中的形成的TiC纳米晶体可降低薄膜中Cl原子渗透的迁移屏障和能量，这导致晶体平面TiC的较低总系统能量变化，TIC和无定形碳（Tic / Ac）的界面结构比纯DLC膜的膜，然后加速Ti-DLC膜的腐蚀性衰竭。

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来源
《Applied Surface Science》 |2021年第15期|148740.1-148740.11|共11页
作者
Zhou Yefei; Li Lulu; Hu Tianshi; Wang Qiang; Shao Wei; Rao Lixiang; Xing Xiaolei; Yang Qingxiang;
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作者单位

Yanshan Univ Sch Mech Engn Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ Sch Mech Engn Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ Sch Mech Engn Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ Sch Mech Engn Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

Yanshan Univ State Key Lab Metastable Mat Sci & Technol Qinhuangdao 066004 Hebei Peoples R China|Yanshan Univ Key Lab Selflubricating Spher Plain Bearing Techn Qinhuangdao 066004 Hebei Peoples R China;

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正文语种 eng
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关键词
Diamond-like carbon; TiC nanocrystalline; Permeation; Corrosion mechanism; First principle calculation;

机译：菱形碳;TIC纳米晶;渗透;腐蚀机制;第一个原理计算;

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Role of TiC nanocrystalline and interface of TiC and amorphous carbon on corrosion mechanism of titanium doped diamond-like carbon films: Exploration by experimental and first principle calculation

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