| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Jones, Bj
Abertay University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Developing fingermarks on circulated scottish banknotes
- 2022Degradation of polymer banknotes through handling, and effect on fingermark visualisationcitations
- 2020The optimisation of fingermark enhancement by VMD and Lumicyano™ on thermal papercitations
- 2016Sticking non-stickcitations
- 2014The effect of substrate geometry and surface orientation on the film structure of DLC deposited using PECVDcitations
- 2014Determining the chronology of deposition of natural fingermarks and inks on paper using secondary ion mass spectrometrycitations
- 2014Determining the chronology of deposition of natural fingermarks and inks on paper using secondary ion mass spectrometrycitations
- 2013The effects of polymer pigmentation on fingermark development techniquescitations
- 2012Substrate and material transfer effects on the surface chemistry and texture of diamond-like carbon deposited by plasma-enhanced chemical vapour depositioncitations
- 2011Argon plasma treatment techniques on steel and effects on diamond-like carbon structure and delaminationcitations
- 2010University challengecitations
- 2010Diamond-like carbon coating of alternative metal alloys for medical and surgical applicationscitations
- 2010Nano-scale composition of commercial white powders for development of latent fingerprints on adhesivescitations
- 2009Diamond-like carbon / epoxy low-friction coatings to replace electroplated chromiumcitations
- 2009Diamond-like carbon/epoxy low-friction coatings to replace electroplated chromiumcitations
- 2009Structure and tribological performance of diamond-like carbon based coatings for aerospace component processingcitations
- 2009Electronic properties of SnO2-based ceramics with double function of varistor and humidity sensor
- 2008In diamond health
- 2008Nano-scale analysis of titanium dioxide fingerprint-development powderscitations
- 2008Energy efficiency improvements in dry drilling with optimised diamond-like carbon coatingscitations
- 2008Sparkling touchdown
- 2008Effect of sintering temperature and heat treatment on electrical properties of indium oxide based ceramics
- 2007Energy Efficiency Improvements in Dry Drilling with Optimised Diamond-Like Carbon Coatingcitations
- 2005Electron paramagnetic resonance evaluation of defects at the (100)Si/Al2O3 interfacecitations
- 2005Analysis of defects at the interface between high-k thin films and (1 0 0) siliconcitations
- 2003An EPR study at X- and W-band of defects in a-Ccitations
- 2003An EPR study at X- and W-band of defects in a-C:H films in the temperature range 5-300K
- 2002Electronic properties of amorphous carbon nitride a-C1-xNxcitations
- 2001Electron delocalization in amorphous carbon by ion implantation
- 2001Electron paramagnetic resonance study of ion implantation induced defects in amorphous hydrogenated carbon
- 2001Electron paramagnetic resonance study of ion implantation induced defects in amorphous hydrogenated carboncitations
Places of action
| Organizations | Location | People |
|---|
report
Argon plasma treatment techniques on steel and effects on diamond-like carbon structure and delamination
Abstract
We demonstrate alteration in diamond-like carbon ({DLC}) film structure, chemistry and adhesion on steel, related to variation in the argon plasma pretreatment stage of plasma enhanced chemical vapour deposition. We relate these changes to the alteration in substrate structure, crystallinity and chemistry due to application of an argon plasma process with negative self bias up to 600 V. Adhesion of the {DLC} film to the substrate was assessed by examination of the spallated fraction of the film following controlled deformation. Films with no pretreatment step immediately delaminated. At 300 V pretreatment, the spallated fraction is 8.2\%, reducing to 1.2\% at 450 V and 0.02\% at 600 V. For bias voltages below 450 V the adhesion enhancement is explained by a reduction in carbon contamination on the substrate surface, from 59 at.\% with no treatment to 26 at.\% at 450 V, concurrently with a decrease in the surface roughness, R q, from 31.5 nm to 18.9 nm. With a pretreatment bias voltage of 600 V a nanocrystalline, nanostructured surface is formed, related to removal of chromium and relaxation of stress; X-ray diffraction indicates this phase is incipient at 450 V. In addition to improving film adhesion, the nanotexturing of the substrate prior to film deposition results in a {DLC} film that shows an increase in sp 3/sp 2 ratio from 1.2 to 1.5, a reduction in surface roughness from 31 nm to 21 nm, and {DLC} nodular asperities with reduced diameter and increased uniformity of size and arrangement. These findings are consistent with the substrate alterations due to the plasma pretreatment resulting in limitation of surface diffusion in the growth process. This suggests that in addition to deposition phase processes, the parameters of the pretreatment process need to be considered when designing diamond-like carbon coatings. ?? 2011 Elsevier B.V. All rights reserved.