Bio-tribological TiN/Ti/a-C : H multilayer coatings development with a built-in mechanism of controlled wear

Major, Ł.; Lackner, J.M.; Major, B.

doi:10.1039/c3ra46944a

Cited by 23 publications

(30 citation statements)

References 21 publications

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“…magnification of the top part of the coating; c). magnification of the bottom part of the coating [13] The numerical modelling was confirmed by TEM characterization of the wear mechanism in the real material (Fig. 17).…”

Section: Resultsmentioning

confidence: 60%

“…the magnified area of one crack presenting the 'layers motion mechanism'; d). place of layers reunion after 'layers motion' [13] The highest, localized stress concentration was moved during the coating deformation from the bottom to the top part of the coating. The layers reunion after movement of individual layers to the closest layer of the same phase was possible by the presence of metallic thin layers at each interface.…”

Section: Resultsmentioning

confidence: 99%

“…TEM bright field image of an as-deposited 8TiN / Ti / a-C : H multilayer coating (higher magnification than (Fig. 12), revealing thin Ti layers presented at each interface) [13] One of the main advantages of the described coatings was that cracking had not been performed suddenly. It occurred layer-by-layer.…”

Section: Resultsmentioning

confidence: 99%

“…14. TEM bright field image of an as-deposited 8 TiN / Ti/a-C:H multilayer coating, together with selected area electron diffraction patterns from selected parts of the coating [13] The first layer from the substrate, it was a pure, metallic titanium buffer layer. Its role was to increase adhesion of the coating to the metallic substrate.…”

Section: Resultsmentioning

confidence: 99%

“…It occurred layer-by-layer. The highest, localized stress concentration was moved during the coating deformation from the bottom to the top part of the coating, which was modelled by the finite elements method [13] (Fig. 16).…”

Section: Resultsmentioning

confidence: 99%

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The Wear Mechanisms Description Of Multilayer Coatings, Performed By Transmission Electron Microscopy – An Overview Of The Own Research Work

Major

2015

Archives of Metallurgy and Materials

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The aim of the presented paper was to describe the wear mechanisms operating at the small length scale in multilayer coatings subjected to a mechanical testing. A hybrid PLD system (Pulsed Laser Deposition connected with magnetron sputtering) was used for the multi-layer coating deposition. Coatings were subjected to indentation, ball-on disc wear and scratch adhesion tests. Microstructure of the as-deposited coating and after mechanical tests was studied using the Scanning (SEM) and the Transmission (TEM) Electron Microscopes. The research work revealed that application of innovative multilayer coatings may allow to predict their life time and to steer their properties.Keywords: multilayer coatings, TEM characterization, wear mechanisms Celem pracy było określenie mechanizmów zużycia wielowarstwowych powłok tribologicznych, poddanych testom mechanicznym na zużycie. Powłoki wytwarzane przy zastosowaniu hybrydowego układu PLD (technika laserowej ablacji połączona z rozpylaniem magnetronowym) poddane zostały mechanicznym testom na zużycie (indentacja oraz test kula-tarcza), a także testowi przylegania powłoki do podłoża (test zarysowania). Charakterystykę mikrostruktury powłok przed i po testach mechanicznych przeprowadzono za pomocą skaningowej (SEM) oraz transmisyjnej (TEM) mikroskopii elektronowej. Badania wykazały, że poprzez stosowanie innowacyjnych powłok wielowarstwowych można przewidzieć czas ich eksploatacji oraz dają możliwość sterowania właściwościami.

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Section: Resultsmentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

The Wear Mechanisms Description Of Multilayer Coatings, Performed By Transmission Electron Microscopy – An Overview Of The Own Research Work

Major

2015

Archives of Metallurgy and Materials

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Nanoporous Substrate‐Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction

Scaraggi

Wang

et al. 2015

Adv Funct Materials

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Nature has successfully combined soft matter and hydration lubrication to achieve ultra-low friction even at relatively high contact pressure (e.g. articular cartilage). Inspired by this, scientists have used hydrogels to mimic natural aqueous lubricating systems. However, hydrogels usually cannot bear high load because of solvation in water environments and are, therefore, not adopted in real applications. In this work, we developed a novel composite surface of ordered hydrogel nanofiber arrays confined in anodic aluminum oxide (AAO) nanoporous template based on a soft/hard combination strategy. The synergy between the soft hydrogel fibers, which provide excellent aqueous lubrication, and the hard phase AAO, which gives high load bearing capacity, is shown to be capable of attaining very low coefficient of friction (< 0.01) under heavy load (with mean contact pressures in the 2 MPa range). Interestingly, the composite synthetic material was very stable and could not be peeled off during sliding and exhibited the desirable regenerative (self-healing) properties, which can assure long term resistance to wear. Moreover, the crosslinked polymethylacrylic acid (PMAA) hydrogels were shown to be able to promptly switch between high friction (> 0.3) and superlubrication (∼10 −3 ) when their state was changed from contracted to swollen by means of acidbasic actuation. The mechanisms governing ultra-low and tunable friction are theoretically explained via an in-depth study of the chemo-mechanical interactions responsible for the behavior of these substrate-infiltrated hydrogels. These findings open a promising route for the design of ultra-slippery and smart surface/interface materials.

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Stabilization of Synthetic Materials with Silver Particles

Major

Imbir

Mzyk

et al. 2019

Innovations in Biomedical Engineering

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Bio-tribological TiN/Ti/a-C : H multilayer coatings development with a built-in mechanism of controlled wear

Cited by 23 publications

References 21 publications

The Wear Mechanisms Description Of Multilayer Coatings, Performed By Transmission Electron Microscopy – An Overview Of The Own Research Work

The Wear Mechanisms Description Of Multilayer Coatings, Performed By Transmission Electron Microscopy – An Overview Of The Own Research Work

Nanoporous Substrate‐Infiltrated Hydrogels: a Bioinspired Regenerable Surface for High Load Bearing and Tunable Friction

Stabilization of Synthetic Materials with Silver Particles

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