Microstructure, mechanical and tribological properties of graphite-like carbon coatings doped with tantalum

被引：22

作者：

Yan, Mingming ^{[1
,2
]}

Wang, Xinyu ^{[1
,2
]}

Zhou, Haibin ^{[1
,2
,3
]}

Liu, Jian ^{[1
,2
,3
]}

Zhang, Shuaituo ^{[1
,2
,3
]}

Lu, Yan ^{[1
,2
,3
]}

Hao, Junying ^{[1
,2
,3
]}

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, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Qingdao Ctr Resource Chem & New Mat, Qingdao 266000, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2021年 / 542卷

基金：

中国国家自然科学基金;

关键词：

Ta-GLC coatings; Structure and morphology; Friction and wear; Wear mechanism; PERFORMANCE; TOUGHNESS; SURFACE; DESIGN; PLASMA; GROWTH; STEEL; RAMAN; TACN; FILM;

D O I：

10.1016/j.apsusc.2020.148404

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：

The tantalum doped graphite-like carbon (Ta-GLC) coatings were obtained by magnetron sputtering. The variations of microstructure, mechanical and tribological properties by Ta content were systematically assessed. The results revealed that as the doping amount of Ta increased, the columnar structure of the coatings became coarser and the content of sp(3)C in the coatings decreased, and the hardness and elastic modulus of the Ta-GLC coatings were decreased correspondingly. However, the adhesion strength between the coatings and substrates was improved after Ta doping. Besides, the Ta-GLC coating with 4.79 at% Ta content exhibits the lowest wear rate of 2.55 x 10(-8) mm(3)/Nm, which is approximately only one third of the value of non-doped GLC coating. This was mainly related to the synergistic effect of higher adhesion strength, graphitization structure and the formation of TaC and Ta nanoclusters in the Ta-GLC coating.

引用

页数：11

共 46 条

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