Probing the frictional properties of sulfur-doped diamond-like carbon films under high vacuum by first-principles calculations

被引：14

作者：

Zhang, Renhui ^{[1
,2
]}

Pu, Jibin ^{[3
]}

Yang, Yingchang ^{[2
]}

Guo, Lei ^{[2
]}

Wang, Junjun ^{[4
]}

机构：

[1] East China JiaoTong Univ, Sch Mat Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China

[2] Tongren Univ, Sch Mat & Chem Engn, Res Ctr Mat & Chem Engn, Tongren 554300, Peoples R China

[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China

[4] Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2019年 / 481卷

基金：

中国国家自然科学基金;

关键词：

Frictional properties; Sulfur; DLC; First-principles; ULTRA-LOW FRICTION; DLC FILMS; TRIBOLOGY; COATINGS; PERFORMANCE; MECHANISM; ADHESION; BEHAVIOR;

D O I：

10.1016/j.apsusc.2019.03.182

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using first-principles method, the frictional properties of diamond-like carbon (DLC) films containing 66.7 and 80 at.% S are well studied. S bulk-doped diamond induces graphitization of surficial carbon atoms, which could well explain the failure mechanism of DLC films with 80 at.% S under high vacuum. Observed from potential energy surfaces, S surface-doped diamond exhibits obviously low friction paths during sliding, which could account for the low friction and long lifetime of DLC films with 66.7 at.% S.

引用

页码：1483 / 1489

页数：7

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