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Tungsten Disulfide (WS2) Nanopowder/Nanoparticles

Tungsten Disulfide (WS2) Nanopowder/Nanoparticles can be used in solid lubricant materials and the work environment of high temperature, high pressure, …

Tungsten Disulfide (WS2) Nanopowder/Nanoparticles

Tungsten Disulfide (WS2) Nanopowder/Nanoparticles can be used in solid lubricant materials and the work environment of high temperature, high pressure, …

Antispalling Effect of WS2 Nanoparticles on the ...

2018-11-13 · The effect of WS 2 nanoparticles used as lubricant additives in the lubrication of automotive gearboxes has been studied. The results suggest that nanoparticles can be used to increase the life span of the mechanical parts of gears. Chemical analyses and observations made after transmission tests have shown that nanoparticles are able to go inside cracks and may have a sealing effect ...

Antispalling Effect of WS2 Nanoparticles on the ...

Onion-like crystalline WS2 nanoparticles anchored on ...

2019-11-1 · In this study, onion-like crystalline WS 2 nanoparticles uniformly anchored on graphene sheets (WS 2 @Gs) were prepared via ball milling using WO 3 nanoparticles and graphene and subsequent sulfidation. They were then employed as high-performance anode materials for Li-ion batteries (LIBs). The ball-milling process facilitated uniform anchoring of WO 3 nanoparticles with a …

Enhanced positive humidity sensitive behavior of p …

2020-8-4 · Moreover, its positive humidity sensing response is further enhanced by n-type WS2 nanoparticles modification. The results show that both rGO and rGO/WS2 humidity sensors have good linear response in the relative humidity (RH) range of 0% − 91.5%. The sensitivity of the rGO/WS2 humidity sensor is 1.87 times that of rGO humidity sensor, which ...

Biodegradable Fe(III)@WS2‐PVP Nanocapsules for …

Jingyi Zhu, Lingzhou Zhao, Junxing Yang, Liang Chen, Jianhui Shi, Jinhua Zhao, Xiangyang Shi, 99mTc-Labeled Polyethyleneimine-Entrapped Gold Nanoparticles with pH-Responsive Charge Conversion Property for Enhanced Dual Mode SPECT/CT Imaging of Cancer Cells, Langmuir, 10.1021/acs.langmuir.9b02617, (2019).

OSA | Superior third-order nonlinearity in inorganic ...

Here, a type of inorganic fullerene-like WS2 nanoparticles is chemically synthesized using hard mesoporous silica. By using the spatial self-phase modulation (SSPM) method, the nonlinear refractive index n2 and third-order susceptibility χ(3) are investigated in the visible range. It is found that n2∼10−5 cm2/W and χ(3)∼10−7 esu, two ...

Frictional Characteristics of IF-WS2 Nanoparticles in ...

2018-6-10 · The efficacy of inorganic fullerene-like (IF) tungsten disulfide (WS 2) nanoparticles as engine oil friction modifier additive was investigated using a high-stroke reciprocating piston ring–cylinder bore bench test system.Frictional characteristics of various IF-WS 2 nanoparticle concentrations in mineral oil were experimentally analyzed in simulated engine conditions controlling oil ...

Tungsten Disulfide Nanopowder/ Nanoparticles ( …

WS2 Nanoparticles Color: silver grey WS2 Nanoparticles Purity: > 99.9% WS2 Nanoparticles Particle Size: <100 um WS2 Nanoparticles Morphology: Spherical WS2 Nanoparticles Coatable substrates: iron steel, aluminum, copper, plastics, and other metals and solids WS2 Nanoparticles Compatibility: oil, solvent, paint, fuel

WS2 nanoparticles – potential replacement for ZDDP …

The IF-WS2 nanoparticles are found to be preserved in the rough summits, fill the valleys, and the pores of the sintered alumina and thus limit the straight contact between the ceramic surfaces.

WS2 nanoparticles as lubricant additives - ePrints Soton

Due to their excellent tribological properties and potential to replace problematic lubricant additives currently in use, WS2 nanoparticles (NPs) have spurred considerable interest from academia and industry over the last two decades to decipher their mechanism of action. To elucidate the mechanism, this study carried out tribological tests at high pressures and low/high temperatures (40 and ...

WS2 nanoparticles as lubricant additives - ePrints Soton

Fullerene-like Nanoparticles of WS2 as a Promising ...

2020-5-10 · Title:Fullerene-like Nanoparticles of WS2 as a Promising Protection from Erosive Wear of Gun Bore Nozzles VOLUME: 16 ISSUE: 1 Author(s):Narimane Rezgui*, Danica Simić, Choayb Boulahbal and Dejan Micković Affiliation:Military Academy, University of Defence, Belgrade, Military Technical Institute, Belgrade, Military Academy, University of Defence, Belgrade, Faculty of Mechanical …

Fullerene-like WS2 nanoparticles and nanotubes by …

2008-2-12 · The fact that the nanoparticles do not grow beyond, say, 100 nm is intriguing and further work is needed to elucidate this self-limiting growth mechanism of the nanoparticles. An intriguing question that arises which has not been fully addressed so far is the relative stability of the fullerene-like structures and the nanotubes of WS 2 (MoS 2 ).

Fullerene-like WS2 nanoparticles and nanotubes by …

Fullerene‐like WS2 Nanoparticles: Superior Lubricants …

WS 2 nanoparticles with closed‐cage structure (fullerene‐like IF) are already being synthesized in macroscopic amounts from the respective oxide nanoparticles. They have been studied as superior solid lubricants under harsh conditions in recent years. Under severe contact conditions both fluids and greases are squeezed out from the contact area and consequently do not provide adequate ...

Friction mechanism of individual multilayered …

Gold nanoparticles deposited onto the IF nanoparticles surface served as markers, delineating the motion of individual IF nanoparticle. It can be concluded from these experiments that rolling is an important lubrication mechanism for IF-WS2 in the relatively low range of normal stress (0.96±0.38 GPa).

Tungsten Disulfide (WS2) Nanoparticles - Nanografi

Tungsten Disulfide (WS2) Nanoparticles. Tungsten disulfide nanoparticles have a 40-80nm average particle size with a high surface area of 80 m2/g. This grey powder of tungsten disulfide nanoparticles is of significant importance across several industries. These nanoparticles …

Tungsten Disulfide (WS2) Nanoparticles - Nanografi

Tungsten Disulfide WS2 Nanopowder / Nanoparticles ...

WS2 nanoparticles is a very good performance of new solid lubricant materials, not only for general lubrication, also it can be used in the work environment of high temperature, high pressure, high vacuum, high load and with radiation and corrosive media; WS2 cluster within the cluster produce magnetic alignment, lubrication process can be ...