A5034778110- Ion-surface interactions and analysis
- Metal and Thin Film Mechanics
- Advanced materials and composites
- Diamond and Carbon-based Materials Research
- Advanced ceramic materials synthesis
- Silicon and Solar Cell Technologies
- Enhanced Oil Recovery Techniques
- High Entropy Alloys Studies
- Integrated Circuits and Semiconductor Failure Analysis
- High-Temperature Coating Behaviors
- Hydrocarbon exploration and reservoir analysis
- Reservoir Engineering and Simulation Methods
- Fusion materials and technologies
- Nuclear Materials and Properties
- Semiconductor materials and devices
- Boron and Carbon Nanomaterials Research
- Petroleum Processing and Analysis
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Force Microscopy Techniques and Applications
- MXene and MAX Phase Materials
- Thin-Film Transistor Technologies
- Oil and Gas Production Techniques
- Advanced Surface Polishing Techniques
- Aluminum Alloys Composites Properties
Southwest Minnesota State University
2025
University of Huddersfield
2015-2024
Manchester Metropolitan University
2006-2018
University of Salford
1994-2006
Sheffield Hallam University
1997
Experimental studies of 10-40-keV ${\mathrm{Xe}}^{+}$ ion bombardment Si at polar incidence angles between 0\ifmmode^\circ\else\textdegree\fi{} and 45\ifmmode^\circ\else\textdegree\fi{} to the surface normal temperatures 100 300 K show little roughening for near but ripple production incidence. It is shown that inclusion directed flux atoms parallel generated by in a stochastic differential equation description dynamics evolution during sputtering erosion can induce smoothing near-normal For...
High-entropy materials represent the state-of-the-art on alloy design strategy for future applications in extreme environments. Recent data indicates that high-entropy alloys (HEAs) exhibit outstanding radiation resistance face of existing diluted counterparts due to suppressed damage formation and evolution. An extension HEA concept is presented this paper towards synthesis characterization novel ceramics as emergent application environments where energetic particle irradiation a major...
Refractory NbTaMoW thin films in close to equiatomic composition were deposited by ion beam sputter-deposition at room temperature. Energy-filtered transmission electron microscopy shows uniform distribution of all elements and diffraction patterns reveals unvarying body-centred cubic crystalline structure. Transmission images show large grains with columnar morphology. Ar bubbles diameters around 1.3 ± 0.4 nm witnessed. The film growth mechanisms are discussed based on high-entropy nature,...
A dual ion beam system has been used to produce hard nanocomposite TiN/Si3N4 coatings on silicon substrate. Mechanical properties have determined by nanoindentation and tribological measured nanoscratch testing. Nanoindentation showed that harder nanocomposites exhibited higher ratios of hardness modulus (H/E). The dependence the resistance plastic deformation (H3/E2) was approximately linear. H/E value influenced behaviour. Coatings with critical loads for elastic–plastic transition also...
The chemical reaction between hydrogen and purely sp(2)-bonded graphene to form graphene's sp(3)-bonded analogue, graphane, potentially allows the synthesis of a much wider variety novel two-dimensional materials by opening pathway application conventional chemistry methods in graphene. Graphene is currently hydrogenated exposure atomic vacuum, but these have not yielded complete conversion even with exposed on both sides lattice. By heating molecular under compression modest high pressure...
Nanocrystallinity prevents irradiation-induced amorphization of nonpure Cr 2 AlC MAX phase thin film.
For studying the damage tolerance of thin films, a novel randomly distributed nano-scratch test method was introduced and demonstrated as promising characterization method. It is capable more closely simulating progression in abrasion, where material removal can be influenced by interaction between produced previous scratches close proximity. In addition to how localized failure events affect subsequent progression, it possible monitor evolution film degradation cycle-by-cycle using mean...
Purpose. The process of the crushing polymer waste during regeneration is main stage preparing material for further use. It usually accompanied by formation small particles dust. These are unable to deposit into receiving hopper under influence gravity; therefore, they removed from gas curve centrifugal force. Small move towards cyclone body wall and settle in collectors.This leads accumulation a significant amount materials classified as "Dust filters" (code 578 002 00 11 4), involves...
TiFeN and TiFeMoN films were deposited on silicon wafers by ion-beam-assisted deposition. Their mechanical properties measured nanoindentation (quasi-static) nano-impact (dynamic) techniques. Nano-impact testing enabled assessment of their toughness resistance to fatigue fracture under repetitive loading. At low impact forces, with a higher plastic deformation ( H 3 / E 2 ) much more resistant the formation cracks throughout test. these initially show but continued impacts they are unable...