Toward Low Friction in High Vacuum for Hydrogenated Diamondlike Carbon by Tailoring Sliding Interface

被引：108

作者：

Cui, Longchen ^{[1
,2
]}

Lu, Zhibin ^{[1
]}

Wang, Liping ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 13期

基金：

中国国家自然科学基金;

关键词：

diamondlike carbon; mating material; friction; high vacuum; first-principles calculation; adhesion; SOLID LUBRICANT COATINGS; SUPERLOW FRICTION; AMORPHOUS-CARBON; FILMS; WEAR; PRINCIPLES; CARBIDE;

D O I：

10.1021/am401192u

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The high friction of diamondlike carbon (DLC)films in vacuum impedes achieving their application in space environment. Here we show that the vacuum friction coefficients can be lowered below 0.1 by avoiding formation of carbonaceous transfer layers on the countetfaces. First-principles calculations reveal that the low friction coefficients stem from intrinsically weak-interacting sliding interfaces. Conversely, formation of transfer layers and carbonaceous sliding interfaces thus established are invalid for friction reduction for DLC in vacuum. The mating materials are thus highlighted for their crucial roles in transfer-layer formation.

引用

页码：5889 / 5893

页数：5

共 24 条

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