Can W-Se-C Coatings Be Competitive to W-S-C Ones?

被引：14

作者：

Evaristo, Manuel ^{[1
]}

Polcar, Tomas ^{[1
,2
]}

Cavaleiro, Albano ^{[1
]}

机构：

[1] Univ Coimbra, Dept Mech Engn, Fac Sci & Technol, SEG CEMUC, P-3030788 Coimbra, Portugal

[2] Czech Tech Univ, Fac Elect Engn, Dept Control Engn, CR-16635 Prague 6, Czech Republic

来源：

PLASMA PROCESSES AND POLYMERS | 2009年 / 6卷

关键词：

C alloyed coatings; low friction coatings; transition metal dichalcogenides; W-Se-C; TRIBOLOGICAL PROPERTIES; MECHANICAL-PROPERTIES; FRICTION PROPERTIES; FILMS; BEHAVIOR; MOS2; TEMPERATURE;

D O I：

10.1002/ppap.200930414

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

W-Se-C coatings were deposited by co-sputtering from WSe(2) and C targets. Carbon content varied from 25 up to 70 at.%, Se/W ratio was between 0.9 and 1.0, with no significant influence of the carbon content on their variations. The hardness of the coatings was evaluated by nano-indentation with values between 3.8 and 5.6 GPa. The structure of the coatings analysed by X-ray diffraction in glancing mode could be defined. as quasi-amorphous. The tribological properties were evaluated in an SRV machine using reciprocating ball-on-disk tests under increasing loads. In general, the friction gets decreased with increasing loads. The comparison with other transition metals, dichalcogenides alloyed with carbon, namely Mo-Se-C and W-S-C systems, showed that W-Se-C coatings could be a good alternative with almost identical friction properties.

引用

页码：S92 / S95

页数：4

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