Temperature dependence of tribological properties of MoS2 and MoSe2 coatings

Kubart, Tomáš; Polcar, Tomáš; Kopecký, Lubomír; Novák, Rudolf; Nováková, D.

doi:10.1016/j.surfcoat.2004.08.146

Cited by 147 publications

(81 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, their tribological behavior was unsuitable whenever high loads were applied to the sliding contact or tests were carried out in moisture containing atmospheres. Other transition metal dichalcogenides have similar properties to those of molybdenum disulfide, although diselenides exhibited improved resistance to water in relation to sulfides [1,5].…”

mentioning

confidence: 99%

Complex frictional analysis of self-lubricant W-S-C/Cr coating

et al. 2012

View full text Add to dashboard Cite

Transition metal dichalcogenides belong to one of the most developed class of materials for solid lubrication. However, one of the main drawbacks of most of the self-lubricating coatings is their low load-bearing capacity, particularly in terrestrial atmospheres. In our previous works, alloying thin films based on tungsten disulfide with non-metallic interstitial elements, such as carbon or nitrogen, has been studied in order to improve tribological performance in different environments.Excellent results were reached with the deposited coatings hardness, in some cases, more than one order of magnitude higher than single W-S films. 2In this work, W-S-C films were deposited with increasing Cr contents by co-sputtering chromium and composite WS 2 -C and targets. Two films were prepared with approx. 7 and 13 at.% of Cr.Alloying with chromium led to dense films with amorphous microstructure; the hardness and adhesion was improved. Sliding tests were carried out in dry and humid air using pin-on-disc with 100Cr6 steel ball as a counterpart. To analyse the sliding process, the surfaces in the contact were investigated by X-ray photoelectron spectroscopy (bonding), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy (TEM). Surface and sub-surface structural modification of the coating and composition of the transferred tribolayer are discussed in detail. High friction in humid air was attributed to the absence of well-ordered WS 2 sliding interface. On the other hand, the existence of such interface explained a very low friction observed in dry air.

show abstract

mentioning

confidence: 99%

Complex frictional analysis of self-lubricant W-S-C/Cr coating

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Использование дан-ных нанокомпозиционных покрытий при повы-шенных температурах ограничено в связи с окис-лением самосмазывающихся компонентов MoS 2 и MoSe 2 . Так, значения коэффициентов трения по-крытий MoS 2 и MoSe 2 резко возрастали при повы-шении температуры выше 300 °С [24]. Применение покрытий MoSeС, обладающих невысокой твердо-стью (< 5 ГПа), но более низким коэффициентом трения по сравнению с TiAlSiCN/MoSeC (< 0,05), также ограничено температурой 300 °С [25].…”

Section: результаты и их обсуждениеunclassified

Hard wear-resistant TiAlSiCN/MoSeC coatings with low coefficient of friction at room and elevated temperatures

Bondarev¹,

Кирюханцев-Корнеев²,

Штанский³

2015

Izv. vuzov, Porošk. metall. funkc. pokryt.

View full text Add to dashboard Cite

“…One of the most interesting low-friction coatings is molybdenum disulphide (MoS2), mainly used as a friction reducer in dry, vacuum and inert gases [3,4]. The fundamental problem in the use of MoS2 as a solid lubricant is a deterioration of its tribological properties in a humid environment.…”

Section: Introductionmentioning

confidence: 99%

Structure and tribological properties of MoS₂low friction thin films

Paradecka

Lukaszkowicz

Sondor³

et al. 2017

ITM Web Conf.

View full text Add to dashboard Cite

Abstract. The main aim of the studies was the deposition of the AlCrN film, covered by molybdenum disulphide (MoS2) -based lubricant, on the austenitic steel substrate. The AlCrN and MoS2 layers were deposited by PVD lateral rotating ARC-cathodes (LARC) and magnetron sputtering technology on the X6CrNiMoTi17-12-2 respectively. Structural characterizations of the MoS2 thin films have been carried out using SEM (scanning electron microscopy) and AFM (atomic force microscopy) to determine the surface topography as well as HRTEM (high-resolution transmission electron microscopy) and Raman spectroscopy for structural investigations. The tribological wear relationships using ball-on-disc test were specified for surface layers, determining the friction co-efficient and mass loss of the investigated surfaces. Tests of the coatings' adhesion to the substrate material were made using the scratch test. HRTEM investigation shows an amorphous character of the MoS2 layer. In sliding dry friction conditions, the friction co-efficient for the investigated elements is set in the range between 0.4-0.5. The investigated coating reveals high wear resistance. The coating demonstrated a dense cross-sectional morphology as well as good adhesion to the substrate. The good properties of the PVD AlCrN+MoS2 coatings make them suitable in various engineering and industrial applications.

show abstract

Temperature dependence of tribological properties of MoS2 and MoSe2 coatings

Cited by 147 publications

References 6 publications

Complex frictional analysis of self-lubricant W-S-C/Cr coating

Complex frictional analysis of self-lubricant W-S-C/Cr coating

Hard wear-resistant TiAlSiCN/MoSeC coatings with low coefficient of friction at room and elevated temperatures

Structure and tribological properties of MoS₂low friction thin films

Contact Info

Product

Resources

About

Temperature dependence of tribological properties of MoS2 and MoSe2 coatings

Cited by 147 publications

References 6 publications

Complex frictional analysis of self-lubricant W-S-C/Cr coating

Complex frictional analysis of self-lubricant W-S-C/Cr coating

Hard wear-resistant TiAlSiCN/MoSeC coatings with low coefficient of friction at room and elevated temperatures

Structure and tribological properties of MoS2low friction thin films

Contact Info

Product

Resources

About

Structure and tribological properties of MoS₂low friction thin films