Raman analysis of DLC and Si-DLC films deposited on nitrile rubber

Lubwama, Michael; Corcoran, Brian; Rajani, K V; Wong, Chiu Soon; Kirabira, John Baptist; Sebbit, Adam; McDonnell, Kevin; Dowling, Denis P.; Sayers, K.

doi:10.1016/j.surfcoat.2013.06.013

Cited by 44 publications

(37 citation statements)

References 35 publications

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“…DLC thin films have been prepared by various methods including pulsed laser deposition [8], ion beam sputtering [9], plasma enhanced chemical vapour deposition (PECVD) [10] and magnetron sputtering (MS) [11]. In this field, Lubwama et al [12][13][14][15] used a combination of closed field unbalanced magnetron sputtering ion plating and PECVD with an Ar/C 4 H 10 plasma to deposit DLC and Si-DLC films with and without Si-C interlayer onto nitrile rubber at a low substrate bias of −30 V and investigated the triboperformance of DLC and Si-DLC films. Pei et al [16] investigated the influence of the bias voltage of MS plasma cleaning and the pulse direct current of plasma chemical vapour deposition on DLC films and provided generic design rules for the deposition of flexible and ultralow friction DLC films on rubber seals.…”

Section: Introductionmentioning

confidence: 99%

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Liu

Wei

et al. 2019

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Liu

Wei

et al. 2019

Surface and Coatings Technology

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“…The residual stress of the DLC coating was measured by Raman shift. Equation (1) shows the relationship between residual stress s r and Raman shift as follows (Wei et al, 1999;Lubwama et al, 2013):…”

Section: Residual Stressmentioning

confidence: 99%

Influence of adhesion strength on cavitation erosion resistance of diamond-like carbon coating

Cheng

Zhao

2019

ILT

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Purpose The disbonding of DLC coating is a main failure mode in the high-speed cavitation condition, which shortens the service life of the bearing. This study aims to investigate influence of adhesion strength on cavitation erosion resistance of DLC coating. Design/methodology/approach Three DLC coatings with different adhesion strengths were grown on the 304 steel surfaces by using a cathodic arc plasma deposition method. Cavitation tests were performed by using a vibratory test rig to investigate the influence of adhesion strength on cavitation erosion resistance of a DLC coating. The cavitation mechanism of the substrate-coating systems was further discussed by means of surface analyses. Findings The results indicated that, the residual stress decreased and then increased with the increasing DLC coating thickness from 1 µm to 2.9 µm, and the lower residual stress can improve the adhesion strength of the DLC coating to the substrate. It was also concluded that, the plastic deformation as well as the fracture occurred on the DLC coating surface at the same time, owing to higher residual stress and poorer adhesion strength. However, lower residual stress and better adhesion strength could help resist the occurrence of the coating fracture. Originality/value Cavitation tests were performed by using a vibratory test rig to investigate the influence of adhesion strength on cavitation erosion resistance of the DLC coating. The plastic deformation and the fracture occurred on the DLC coating surface at the same time, owing to higher residual stress and poorer adhesion of coating. Lower residual stress and better adhesion of coating could resist the occurrence of the DLC coating fracture.

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“…We used a special mounting to hold the piston seals during film deposition; this sample holder was rotated at a speed of 5 rotations per minute. Detailed description of the deposition process has been presented elsewhere (Lubwama et al, 2012a;Lubwama et al, 2012b;Lubwama et al, 2013;Lubwama et al, 2014).…”

Section: Deposition Of Dlc and Si-dlc Filmsmentioning

confidence: 99%

Water Is Life

Fagan¹,

Linnane²,

McGuigan³

et al. 2015

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This is a book about community-based research in the service of improving the sustainability and equity of safe water production, consumption, and management at community level in rural Uganda. It provides an account of the findings of a five-year combined social science, natural science, and engineering research work programme (2009-14) which took place within and with the community, in the sense that the community identified their water needs and related their everyday struggles with water resourcing to the research team, and they contributed to the outcomes. Our research programme began 14 years after the Ugandan government enacted the 1995 Water Statute (which provided the framework for the use, protection, and management of water resources and supply, the constitution of water authorities, and the devolution of water supply undertakings), 10 years after the 1999 National Water Policy was rolled out, and six years short of the delivery date for the Millennium Development Goals on water.

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Raman analysis of DLC and Si-DLC films deposited on nitrile rubber

Cited by 44 publications

References 35 publications

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Influence of adhesion strength on cavitation erosion resistance of diamond-like carbon coating

Water Is Life

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