The Ti/MoS2 films with nano-composite and nano-multilayer structures are synthesised as well as the pristine MoS2 film by unbalanced magnetron sputtering. The effects of film structure on the solid lubrication performance in vacuum have been investigated. The microstructural analysis by scanning electron microscope and transmission electron microscope displays that the addition of Ti in MoS2 films with both nanostructures hinders the growth of columnar grains, leading to the improved compactness of films and mechanical properties. Through the analysis, it is found that the metallic titanium in the form of nanocrystals can transform into fine and uniform wear debris which benefits the preserve of transfer film, while the large and non-uniform debris resulted from the layer form can lead to localised severe damage and unstable friction.
ColasG, SaulotA, RegisE, Investigation of crystalline and amorphous MoS2 based coatings: towards developing new coatings for space applications. Wear. 2015;330–331:448–460.
2.
FuY, HeT, YangW, Structure, mechanical and tribological properties of MoSN/MoS2 multilayer films. Coatings. 2019;9(2):108.
3.
YanZ, JiangD, FuY, Vacuum tribological performance of WS2-MoS2 composite film against oil-impregnated porous polyimide: influence of oil viscosity. Tribol Lett. 2019;67(1):2.
4.
PolcarT, CavaleiroA.Review on self-lubricant transition metal dichalcogenide nanocomposite coatings alloyed with carbon. Surf Coat Technol. 2011;206(4):686–695.
5.
Domínguez-MeisterS, ConteM, IgartuaA, Self-lubricity of WSex nanocomposite coatings. Acs Appl Mater Interfaces. 2015;7(15):7979–7986.
6.
JeongY, SungJY, ChoiY, Structural characterization and transistor properties of thickness-controllable MoS2 thin films. J Mater Sci. 2019 May;54(10):7758–7767.
7.
HeT, LiY, ZhouZ, Synthesis of large-area uniform MoS2 films by substrate-moving atmospheric pressure chemical vapor deposition: from monolayer to multilayer. 2D Mater. 2019;6(2):025030.
8.
ZhangC, YangB, WangJ, Microstructure and friction behavior of LaF3 doped Ti-MoS2 composite thin films deposited by unbalanced magnetron sputtering. Surf Coat Technol. 2019 Feb 15;359:334–341.
9.
KaimingW, YulongL, HanguangF, A study of laser cladding NiCrBSi/Mo composite coatings. Surf Eng. 2018;34(4):267–275.
10.
ZhaoX, LuZ, ZhangG, Self-adaptive MoS2-Pb-Ti film for vacuum and humid air. Surf Coat Technol. 2018 Jul;345:152–166.
11.
ZhangR, DuY, HanG, Ferromagnetism and microwave absorption properties of Cr-doped MoS2 nanosheets. J Mater Sci. 2019 Jan;54(1):552–559.
12.
QinY, LiY, XiongD, Wide temperature lubrication of LST/PEO/Ag/MoS2 multilayer coating. Surf Eng. 2019 Jan 2;35(1):71–78.
13.
PimentelJV, PolcarT, CavaleiroA.Structural, mechanical and tribological properties of Mo–S–C solid lubricant coating. Surf Coat Technol. 2011;205(10):3274–3279.
14.
Hang Nguyen ThaiP, Nguyen DucT, Phuong AiD, Influence of MoS2 deposition time on the photocatalytic activity of MoS2/V, N co-doped TiO2 heterostructure thin film in the visible light region. Curr Appl Phys. 2018 Jun;18(6):737–743.
15.
JiaoP, LiH, ZuG, Tribological properties of MoS2 nanosheets solid lubricant planted on TiO2 nanotube array bed. Tribol Int. 2018 Sep;125:12–16.
16.
ZhengX, XuY, GengJ, Tribological behavior of Fe3O4/MoS2 nanocomposites additives in aqueous and oil phase media. Tribol Int. 2016;102:79–87.
17.
LiZX, WanQ, LiGD, Lubrication mechanisms of C-MoS2-Fe2O3 (Fe3O4) nano-composite lubricants at the rubbing interfaces of non-copper coated solid wires against the contact tube. Materwiss Werksttech. 2019 Jan;50(1):52–63.
18.
ColasG, SaulotA, PhilipponD, Tribochemical competition within a MoS2/Ti dry lubricated macroscale contact in ultrahigh vacuum: a time-of-flight secondary ion mass spectrometry investigation. Acs Appl Mater Interfaces. 2018;10(23):20106–20119.
19.
DingX-z, ZengXT, HeXY, Tribological properties of Cr- and Ti-doped MoS2 composite coatings under different humidity atmosphere. Surf Coat Technol. 2010;205(1):224–231.
20.
SunG, BhowmickS, AlpasAT.Effect of atmosphere and temperature on the tribological behavior of the Ti containing - MoS2 coatings against aluminum. TriL. 2017;65(4):158.
21.
WangJ, WangP, WangH, Preparation of molybdenum disulfide coated Mg/Al layered double hydroxide composites for efficient removal of chromium(VI). ACS Sustain Chem Eng. 2017 Aug;5(8):7165–7174.
JuH, YuD, YuL, The influence of Ag contents on the microstructure, mechanical and tribological properties of ZrN-Ag films. Vacuu. 2018;148:54–61.
24.
TuranME, SunY, AkgulY.Mechanical, tribological and corrosion properties of fullerene reinforced magnesium matrix composites fabricated by semi powder metallurgy. J Alloys Compd. 2018;740:1149–1158.
25.
MaF, LiJ, ZengZ, Structural, mechanical and tribocorrosion behaviour in artificial seawater of CrN/AlN nano-multilayer coatings on F690 steel substrates. Appl Surf Sci. 2018;428:404–414.
26.
SkordarisG, BouzakisKD, KotsanisT, Film thickness effect on mechanical properties and milling performance of nano-structured multilayer PVD coated tools. Surf Coat Technol. 2016;307:452–460.
27.
XuS, GaoX, SunJ, Comparative study of moisture corrosion to WS2 and WS2/Cu multilayer films. Surf Coat Technol. 2014 May;247:30–38.
28.
XuS, LiuY, GaoM, Superior lubrication of dense/porous-coupled nanoscale C/WS2 multilayer coating on ductile substrate. Appl Surf Sci. 2019 May;476:724–732.
29.
ShangK, ZhengS, RenS, Improving the tribological and corrosive properties of MoS2-based coatings by dual-doping and multilayer construction. Appl Surf Sci. 2018;437:233–244.
30.
SunS, WangY, LuX, Achieving excellent tribological performance of a-C: WC film by controlling sub-nano-structure. Tribol Int. 2018;128:65–74.
31.
XuJ, HeTF, ChaiLQ, Selective-releasing-affected lubricant mechanism of a self-assembled MoS2/Mo-S-C nanoperiod multilayer film sliding in diverse atmospheres. Phys Chem Chem Phys. 2017 Mar;19(12):8161–8173.
32.
ZhangP, FangY, DaiS, Preparation and characterization of MoS2-TiL/MoS2-TiH nano multilayer coating with excellent wear properties. Mater Lett. 2016;173:35–38.
33.
ZhangX, TianX-B, ZhaoZ-W, Evaluation of the adhesion and failure mechanism of the hard CrN coatings on different substrates. Surf Coat Technol. 2019 Apr;364:135–143.
34.
KimH-K, LaJ-H, KimK-S, The effects of the H/E ratio of various Cr-N interlayers on the adhesion strength of CrZrN coatings on tungsten carbide substrates. Surf Coat Technol. 2015 Dec;284:230–234.
35.
MengF, HanH, GaoX, Experiment study on tribological performances of GNPs/MoS2 coating. Tribol Int. 2018;118:400–407.
36.
LiH, ZhangG, WangL.Low humidity-sensitivity of MoS2/Pb nanocomposite coatings. Wear. 2016;350-351:1–9.
37.
JariwalaD, SangwanVK, LateDJ, Band-like transport in high mobility unencapsulated single-layer MoS2 transistors. Appl Phys Lett. 2013;102(17):173107.
