Tribological characteristics of WS2/MoS2 solid lubricating multilayer films

Watanabe, Shuichi; Noshiro, Junichi; Miyake, Shojiro

doi:10.1016/j.surfcoat.2003.09.063

Cited by 147 publications

(61 citation statements)

References 13 publications

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“…Two of these MX 2 materials that have been intensively studied are 2H-MoS 2 and 2H-WS 2 (2H stands for hexagonal unit cell consisting of two layers). They were shown to be good solid lubricants [2] and catalysts [3]. It is generally believed that 2H-WS 2 can be a promising material for solar cells [4,5], therefore much effort has been devoted to in the synthesis of WS 2 (and WSe 2 ) thin films and understanding their electronic and transport properties [6].…”

Section: Introductionmentioning

confidence: 99%

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS₂ nanoparticles

Späth

Kopnov

Cohen

et al. 2008

Physica Status Solidi (b)

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Organic conducting polymers can be synthesized inside the pores of a track‐etch membrane, and the resulting hollow tubules are shown to have enhanced electrical properties compared to their corresponding bulk materials. The polymerization of monomers (e.g., pyrrole, thiophenes) inside the confined space of these pores, combined with electrostatic interaction, ensures the alignment of the organic polymers on the interior, leading to higher conductivity. The application of these conducting tubes in the development of amperometric glucose sensors is discussed. Due to the special properties of conducting polymers inside a track‐etch membrane, biosensors with a unique electron‐transfer mechanism have been developed.

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Section: Introductionmentioning

confidence: 99%

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS₂ nanoparticles

Späth

Kopnov

Cohen

et al. 2008

Physica Status Solidi (b)

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“…In addition, they must be adaptable to environmental changes that occur in the operating environment such as high temperature, oxidation, and moisture. The tribological properties of MoS 2 films have been significantly improved in a wide range of environments through the use of additives such as metals, oxides, and inorganic sulfides [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. MoS 2 composite films grown by magnetron co-sputtering from either pure or composite targets of MoS 2 and additives were studied as lubricants in humid air [21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Transmission Electron Microscopy Analysis of Mo–W–S–Se Film Sliding Contact Obtained by Using Focused Ion Beam Microscope and In Situ Microtribometer

Wheeler

Zabinski

et al. 2008

Tribol Lett

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To better understand the fundamentals of solid lubrication, microstructural analyses on the wear scar surface and contact interface of Mo-W-S-Se composite films produced by pulsed laser deposition were completed. Focused ion beam (FIB), transmission electron microscopy (TEM), and X-ray energy dispersive spectroscopy were employed to study the cross-sectional microstructure and chemistry of wear scars. In particular, a novel microtribometer was built for in situ tribological measurements within a FIB microscope. The sliding tip was welded in contact to the wear scar surface on the film under load by re-deposition of sputtering materials from the FIB cut of the tip. Using this technique, cross-sectional TEM specimens were prepared precisely at the contact point without tip/film separation. Here, the in situ FIB microtribometer is critically important for retaining the microstructure of lubricant films as formed at the sliding contact interface between the tip and film without separation. It provides the unique ability to stop sliding, section the contact, and reveal microstructural changes to that contact without disrupting the sliding interface. The cross-sectional TEM measurements were performed on the sliding contact interface for both the regions in contact and just past contact, and both the reorientation and recrystallization of lubricant films were revealed.

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“…All of this makes these coatings inappropriate for operation in environments under high contact load. Many different approaches have been tried to overcome these problems, including the introduction of metals or compounds whose objective is to produce dense microstructures and to increase the oxidation resistance, the mechanical behaviour and the tribological performance [9][10][11][12]. Promising results concerning industrial applications are expected for the WS 2 films developed in our group, when they are alloyed with carbon or nitrogen [13].…”

Section: Introductionmentioning

confidence: 99%

On the microstructure of tungsten disulfide films alloyed with carbon and nitrogen

Nossa¹,

Cavaleiro²,

Carvalho³

et al. 2005

Thin Solid Films

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This work aimed at studying the effect of a Ti interlayer and the alloying with carbon and nitrogen of W-S-C(N) films on the mechanical and tribological properties. The W-S-C and W-S-N films were deposited by r.f. magnetron reactive sputtering with CH 4 or N 2 as reactive gases and analysed by high resolution electron microscopy techniques. The hardness showed an improvement with the addition of the alloying element, which was attributed to the densification of the morphology, the decrease of the grain size, and the precipitation of new phases harder than WS 2 . The formation of either TiC or TiN at the interface between the Ti interlayer and the W-S-C(N) films promoted the enhancement of adhesion in the alloyed films. These improvements led to an enhanced tribological behaviour, in particularly the lowering of the wear coefficients. D

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Tribological characteristics of WS2/MoS2 solid lubricating multilayer films

Cited by 147 publications

References 13 publications

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS₂ nanoparticles

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS₂ nanoparticles

Transmission Electron Microscopy Analysis of Mo–W–S–Se Film Sliding Contact Obtained by Using Focused Ion Beam Microscope and In Situ Microtribometer

On the microstructure of tungsten disulfide films alloyed with carbon and nitrogen

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Tribological characteristics of WS2/MoS2 solid lubricating multilayer films

Cited by 147 publications

References 13 publications

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS2 nanoparticles

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS2 nanoparticles

Transmission Electron Microscopy Analysis of Mo–W–S–Se Film Sliding Contact Obtained by Using Focused Ion Beam Microscope and In Situ Microtribometer

On the microstructure of tungsten disulfide films alloyed with carbon and nitrogen

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Product

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X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS₂ nanoparticles

X‐ray photoelectron spectroscopy and tribology studies of annealed fullerene‐like WS₂ nanoparticles