Next Article in Journal
Physicochemical and Biological Activity Analysis of Low-Density Polyethylene Substrate Modified by Multi-Layer Coatings Based on DLC Structures, Obtained Using RF CVD Method
Next Article in Special Issue
On the Importance of Combined Scratch/Acoustic Emission Test Evaluation: SiC and SiCN Thin Films Case Study
Previous Article in Journal
Chitosan Based Regenerated Cellulose Fibers Functionalized with Plasma and Ultrasound
Previous Article in Special Issue
Microstructure, Microhardness, and Wear Resistance of AlCoCrFeNiTi/Ni60 Coating by Plasma Spraying
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle

Tribological Properties of New Cu-Al/MoS2 Solid Lubricant Coatings Using Magnetron Sputter Deposition

1
College of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China
2
Advanced Materials Research and Development Center, Zhejiang Industry and Trade Vocational College, No. 717 Fudong Road, Wenzhou 325003, China
3
College of Chemistry and Materials Engineering, Wenzhou University, No. 276 Xueyuan Middle Road, Wenzhou 325035, China
*
Author to whom correspondence should be addressed.
Coatings 2018, 8(4), 134; https://doi.org/10.3390/coatings8040134
Received: 10 February 2018 / Revised: 24 March 2018 / Accepted: 26 March 2018 / Published: 6 April 2018
(This article belongs to the Special Issue Coatings Tribology)
  |  
PDF [39636 KB, uploaded 3 May 2018]
  |  

Abstract

The increasing demands of environmental protection have led to solid lubricant coatings becoming more and more important. A new type of MoS2-based coating co-doped with Cu and Al prepared by magnetron sputtering, including Cu/MoS2 and Cu-Al/MoS2 coatings, for lubrication applications is reported. To this end, the coatings were annealed in an argon atmosphere furnace. The microstructure and the tribological properties of the coatings prior to and following annealing were analyzed using scanning electron microscopy, energy dispersive spectrometry, X-ray diffractometry (XRD) and with a multi-functional tester for material surface properties. The results demonstrated that the friction coefficient of the Cu/MoS2 coating was able to reach as low as 0.07, due to the synergistic lubrication effect of the soft metal Cu with MoS2. However, the wear resistance of the coating was not satisfied. Although the lowest friction coefficient of the Cu-Al/MoS2 coatings was 0.083, the wear resistance was enhanced, which was attributed to the improved the toughness of the coatings due to the introduction of aluminum. The XRD results revealed that the γ2-Cu9Al4 phase was formed in the specimen of Cu-Al/MoS2 coatings. The comprehensive performance of the Cu-Al/MoS2 coatings after annealing was improved in comparison to substrate heating, since the heat-treatment was beneficial for the strengthening of the solid solution of the coatings. View Full-Text
Keywords: Cu/MoS2 coatings; Cu-Al/MoS2 coatings; tribological properties; annealing treatment; γ2-Cu9Al4 phase Cu/MoS2 coatings; Cu-Al/MoS2 coatings; tribological properties; annealing treatment; γ2-Cu9Al4 phase
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Cao, M.; Zhao, L.; Wu, L.; Wang, W. Tribological Properties of New Cu-Al/MoS2 Solid Lubricant Coatings Using Magnetron Sputter Deposition. Coatings 2018, 8, 134.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Coatings EISSN 2079-6412 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top