Adhesion and composite micro-hardness of DLC and Si-DLC films deposited on nitrile rubber

Lubwama, Michael; Corcoran, Brian; Sayers, K.; Kirabira, John Baptist; Sebbit, Adam; McDonnell, Kevin; Dowling, Denis P.

doi:10.1016/j.surfcoat.2012.05.079

Cited by 61 publications

(45 citation statements)

References 23 publications

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“…The piston seal coated with DLC with Si-C interlayer had the least mass loss for both the top and bottom seals for piston seal wear testing in clean water (without solid particles). This low mass difference is due to the presence of the Si-C interlayer, which enhanced the adhesion to the piston seal substrate (Lubwama et al, 2012a). The mass difference of DLC and Si-DLC coated top seals was much higher than expected.…”

Section: Wear Of Nitrile Rubber Piston Sealsmentioning

confidence: 75%

See 1 more Smart Citation

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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Section: Wear Of Nitrile Rubber Piston Sealsmentioning

confidence: 75%

“…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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“…The coating was chosen with the multilayer architecture, including an (Cr,Al,Si)N adhesive-smoothing layer, a DLC-Si transition layer, and a DLC wear-resistant layer, in order to secure high adhesion to the ceramic substrate and release the smoothing effect of the coating. Following some studies [51][52][53], it was found that the adhesion of the coating to the substrate was enhanced due to a DLC-Si layer included in the coating. Furthermore, in [51], the studies found that the DLC-Si demonstrated lower hardness and wear resistance compared to those of the DLC coating, and that fact contributed to the selection of DLC-Si as a transition layer ensuring high adhesion and a smooth transition of properties.…”

Section: Methodsmentioning

confidence: 99%

Nanostructured Multilayer Composite Coatings for Cutting Tools

Grigoriev¹,

Vereschaka²,

Волосова³

et al. 2021

Advanced Ceramic Materials

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The chapter deals with the specific features concerning the application of wear-resistant coatings to improve the performance properties of ceramic cutting tools. The paper discusses the theoretical background associated with the specific operation conditions and wear of ceramic cutting tools and influencing the choice of the compositions and structures of wear-resistant coatings. The studies were focused on the application of the Ti-(Ti,Al)N-(Zr,Nb,Ti,Al)N multilayer composite coating with a nanostructured wear-resistant layer, as well as the (Cr,Al,Si)N–(DLC–Si)–DLC–(DLC–Si) and (Cr,Al,Si)N–DLC composite coatings in order to improve the cutting properties of ceramic tools. The chapter presents the results of the comparative cutting tests for the tools with the coatings under study, uncoated tools, and tools with the Ti-(Ti,Al)N commercial coating. The wear mechanisms typical for ceramic cutting tools with coatings of various compositions have been investigated.

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“…Diamond-like carbon (DLC) is an important form of amorphous carbon consisting of a mixture of both sp 2 and sp 3 coordinated carbon. It is also known that hydrogenated carbon films show a wide range of properties concerned with hardness (3000-5000 kg mm −2 ), chemical inertness, thermal conductivity, wear resistance (1.6 x 10 −9 mm 3 /mN), low friction coefficients (0.1-0.2), electrical resistivity, optical transparency from ultraviolet to infrared, and tunable band gap by manipulating sp 2 and sp 3 bonding ratio [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

DLC Thin Films and Carbon Nanocomposite Growth by Thermionic Vacuum Arc (TVA) Technology

Vladoiu¹,

Poroşnicu²,

Mandes³

et al. 2016

Diamond and Carbon Composites and Nanocomposites

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The aim of this chapter is to report the results on synthesis DLC thin films and carbon nanocomposites by the versatile nanofabrication method based on plasma entitled thermionic vacuum Arc TVA . TV" technology is based on the localized ignition of the arc plasma in vacuum conditions. "mong thin film coating methods by vacuum deposition techniques with high purity, low roughness, and good adhesion on the substrates, TVA is one of the major suitable methods to become a powerful coating technology. Two or three different TV" discharges can be ignited simultaneously in the same chamber for multi-material processing using TV" and separate power supplies. These TV" discharges are localized and do not interfere with each other. Simultaneous two or three TV" discharges were already used for the production of alloy/composite of various materials. This is due to the high versatility concerning the configuration of experimental arrangements, taking into account the number of electron guns, symmetry of the electrodes, relative position of the anode versus cathode, and also the huge opportunity to combine the materials to be deposited bi-and multi-layers, nanocomposites, or alloys in order to have specific applications. This chapter presents the comparative results concerning the surface-free energy information processing, the reflective index, the hardness, and the morphology to provide a coherent description of the diamond-like carbon films and carbon nanocomposites synthesized by thermionic vacuum arc TV" and related configurations where Me = "g, "l, Cu, Ni, and Ti: binary composites CMe, C-Si and ternary composites C+Si+Me . The results include reports on the distribution in size, surface, geometry, and dispersion of the nanosized constituents, tailoring and understanding the role of interfaces between structurally or chemically dissimilar phases on bulk properties, as well as the study of physical properties of nanocomposites structural, chemical, mechanical, tribological . The results presented

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Adhesion and composite micro-hardness of DLC and Si-DLC films deposited on nitrile rubber

Cited by 61 publications

References 23 publications

Water Is Life

Water Is Life

Nanostructured Multilayer Composite Coatings for Cutting Tools

DLC Thin Films and Carbon Nanocomposite Growth by Thermionic Vacuum Arc (TVA) Technology

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