Adhesion strength and tribological property of self-lubricating Si/MoS2 nanocoating by pulsed laser deposition method

Banday, Summèra; Reshi, Bilal Ahmad; Wàňi, M.F.

doi:10.1016/j.ceramint.2021.09.068

Cited by 10 publications

(4 citation statements)

References 51 publications

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“…where h is the full depth. Nano-scratch testing was carried out with a procedure previously used in our laboratory (Lemoine et al, 2004) and similar to that employed in many other thin film studies (Banday et al, 2021;Zhi et al, 2022;Ma et al, 2021). Compared to the nanoindentation study, we used a more acute diamond cube corner tip (semi-included apex angle = 45 • ) to increase strain and trigger brittle fracture.…”

Section: Methodsmentioning

confidence: 99%

Nanoindentation and Nano-Scratching of Hydroxyapatite Coatings for Resorbable Magnesium Alloy Bone Implant Applications

LEMOINE¹,

Acheson²,

McKillop³

et al. 2022

SSRN Journal

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Section: Methodsmentioning

confidence: 99%

Nanoindentation and Nano-Scratching of Hydroxyapatite Coatings for Resorbable Magnesium Alloy Bone Implant Applications

LEMOINE¹,

Acheson²,

McKillop³

et al. 2022

SSRN Journal

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“…4 (b). The coe cient of friction was measured while the point scratched the surface of specimen [36][37][38][39][40]. The tribological behaviour of the Ni-Co-BN Nano-coatings was determined by Nano wear tests with tip velocity of 10 µm x 10 µm/s area.…”

Section: Surface Morphology and Testingmentioning

confidence: 99%

Evaluation of adhesion strength and tribological characteristics of Ni-Co-BN nano-coating developed by magnetron sputtering

Wani‫

Ahmad

2023

Preprint

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Nickel-Cobalt-Boron Nitride (Ni-Co-BN) coatings were deposited on aluminium silicon substrate (Al-Si) substrate (Al-Si) using magnetron sputtering system. The composition and characteristics of the nano-coating were analysed using X-Ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and energy dispersive spectroscopy (EDS). Nano scratch tests with ramp loading of 5000 µN have been conducted at three regions to understand the coating behavior. The coating adheres well to the substrate up to the load of 4499 µN. However, at a load of 4500 µN, the peeling of coating occurred. Nano wear tests were performed at a load of 100 µN by varying the number of cycles of 2, 4, 6, and 8 possessing a tip velocity of 40 µm/sec to determine material loss and material loss resistance. It was observed that wear rates go down as we increase the wear cycles and sliding distance. The low values of friction coefficient during wear tests indicate that the coating has excellent lubricating properties and suggests its suitability for Internal combustion engine applications.

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“…In most solid lubrication applications, the MoS 2 coating is deposited onto a substrate via sputtering or similar processes. Substrate adhesion has been studied for these systems. − Notably, Fleischauer and co-workers investigated sputter-deposited MoS 2 and found that lower porosity and higher purity resulted in lower adhesion . Furthermore, applied stress reoriented crystallites and induced further crystallization.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Adhesion and Material Transfer at 2D MoS₂–MoS₂ Interfaces Elucidated by In Situ Transmission Electron Microscopy and Atomistic Simulations

Toom,

Sato,

Milne

et al. 2024

ACS Appl. Mater. Interfaces

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Low-dimensional materials, such as MoS 2 , hold promise for use in a host of emerging applications, including flexible, wearable sensors due to their unique electrical, thermal, optical, mechanical, and tribological properties. The implementation of such devices requires an understanding of adhesive phenomena at the interfaces between these materials. Here, we describe combined nanoscale in situ transmission electron microscopy (TEM)/atomic force microscopy (AFM) experiments and simulations measuring the work of adhesion (W adh ) between self-mated contacts of ultrathin nominally amorphous and nanocrystalline MoS 2 films deposited on Si scanning probe tips. A customized TEM/AFM nanoindenter permitted high-resolution imaging and force measurements in situ. The W adh values for nanocrystalline and nominally amorphous MoS 2 were 604 ± 323 mJ/m 2 and 932 ± 647 mJ/m 2 , respectively, significantly higher than previously reported values for mechanically exfoliated MoS 2 single crystals. Closely matched molecular dynamics (MD) simulations show that these high values can be explained by bonding between the opposing surfaces at defects such as grain boundaries. Simulations show that as grain size decreases, the number of bonds formed, the W adh and its variability all increase, further supporting that interfacial covalent bond formation causes high adhesion. In some cases, sliding between delaminated MoS 2 flakes during separation is observed, which further increases the W adh and the range of adhesive interaction. These results indicate that for low adhesion, the MoS 2 grains should be large relative to the contact area to limit the opportunity for bonding, whereas small grains may be beneficial, where high adhesion is needed to prevent device delamination in flexible systems. KEYWORDS: molybdenum disulfide, work of adhesion, material transfer, in situ transmission electron microscopy (TEM), molecular dynamics simulations (MD) ■ INTRODUCTIONRecently, interest has rapidly grown in manufacturing flexible electronics, which can bend, twist fold, and wrap over the supporting surfaces without transfer of material or other changes in their properties and characteristics. 1,2 Flexible electronic devices have a wide range of applications in health care (skin, implantable devices, wearable cardiovascular devices, etc.), 3,4 communication and sensing, 5 and solar cells, 6 among others. Low-dimensional materials, including graphene, boron nitride, gallium nitride, and transition metal dichalcogenides (TMDs) like MoS 2 and WS 2 , and heterostructures that combine them lead a revolution in flexible electronics due to their unique structure and remarkable chemical, optical, thermal, and electromechanical properties. 7,8 These materials may serve as the flexible substrate for the electronic components in flexible devices or as the devices themselves. Molybdenum disulfide (MoS 2 ) is particularly promising in device applications. Next to graphene, MoS 2 is one of the most widely used and important 2D materials, finding applications in...

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Adhesion strength and tribological property of self-lubricating Si/MoS2 nanocoating by pulsed laser deposition method

Cited by 10 publications

References 51 publications

Nanoindentation and Nano-Scratching of Hydroxyapatite Coatings for Resorbable Magnesium Alloy Bone Implant Applications

Nanoindentation and Nano-Scratching of Hydroxyapatite Coatings for Resorbable Magnesium Alloy Bone Implant Applications

Evaluation of adhesion strength and tribological characteristics of Ni-Co-BN nano-coating developed by magnetron sputtering

Nanoscale Adhesion and Material Transfer at 2D MoS₂–MoS₂ Interfaces Elucidated by In Situ Transmission Electron Microscopy and Atomistic Simulations

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Adhesion strength and tribological property of self-lubricating Si/MoS2 nanocoating by pulsed laser deposition method

Cited by 10 publications

References 51 publications

Nanoindentation and Nano-Scratching of Hydroxyapatite Coatings for Resorbable Magnesium Alloy Bone Implant Applications

Nanoindentation and Nano-Scratching of Hydroxyapatite Coatings for Resorbable Magnesium Alloy Bone Implant Applications

Evaluation of adhesion strength and tribological characteristics of Ni-Co-BN nano-coating developed by magnetron sputtering

Nanoscale Adhesion and Material Transfer at 2D MoS2–MoS2 Interfaces Elucidated by In Situ Transmission Electron Microscopy and Atomistic Simulations

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Product

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Nanoscale Adhesion and Material Transfer at 2D MoS₂–MoS₂ Interfaces Elucidated by In Situ Transmission Electron Microscopy and Atomistic Simulations