- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Force Microscopy Techniques and Applications
- Advanced Surface Polishing Techniques
- Advanced ceramic materials synthesis
- Nuclear Materials and Properties
- Aluminum Alloy Microstructure Properties
- Forensic Anthropology and Bioarchaeology Studies
- Traumatic Ocular and Foreign Body Injuries
- Lubricants and Their Additives
- High Temperature Alloys and Creep
- Autopsy Techniques and Outcomes
- Surface Treatment and Residual Stress
- Adhesion, Friction, and Surface Interactions
- Injury Epidemiology and Prevention
- Advanced Materials Characterization Techniques
- High-Velocity Impact and Material Behavior
- Boron and Carbon Nanomaterials Research
- Tribology and Wear Analysis
- Conservation Techniques and Studies
- Advanced Sensor Technologies Research
- Microstructure and mechanical properties
- Metal Alloys Wear and Properties
University of Bath
2022
Aston University
2017-2020
University of Leicester
2008-2017
University of Oxford
2016
Bracco (Switzerland)
2007
Newcastle University
1993-1998
University of Newcastle Australia
1995
This article reports on the structure and mechanical properties of CNx thin films deposited by unbalanced reactive magnetron sputtering C in N2 discharges. The were grown Si(001) substrates kept at temperatures (Ts) between 150 600 °C. Depending Ts, contained 15 26 at. % N. X-ray photoelectron spectroscopy samples typically showed two peaks 1s core level spectrum (centered 284.5 286.2 eV) N 398.4 400.3 eV). indicates that there are types C–N bonds where is bonded to both sp2- sp3-coordinated...
The application of diamond like carbon (DLC) coatings in tribological applications, the range deposition methods employed and techniques for characterising structure properties films produced are reviewed. Thus far, DLC have found broad industrial application, particularly optical electronic areas. In used successfully as ball bearings where they decrease friction coefficient between race; shaving applications increase life razor blades wet applications; increasingly automotive such racing...
Variable airflow obstruction and airway hyperresponsiveness (AHR) are features of asthma, which absent in nonasthmatic eosinophilic bronchitis (EB). Airway remodelling is characteristic both conditions suggesting that dysfunction disassociated, but whether the geometry differs between asthma EB uncertain.We assessed by computed tomography (CT) imaging vs EB. A total 12 subjects with mild-moderate 14 refractory 10 11 healthy volunteers were recruited. Subjects had a narrow collimation (0.75...
In this paper, we investigate the residual deformation field in vicinity of nano-scratch tests using two orientations a Berkovich tip on an (001) Cu single crystal. We compare with that from indentation, attempt to understand mechanisms tangential sliding. The lattice rotation fields are mapped experimentally high-resolution electron backscatter diffraction (HR-EBSD) cross-sections prepared focused ion beam (FIB). A physically-based crystal plasticity finite element model (CPFEM) is used...
Diamond like carbon (DLC) coatings have been investigated for application in the automotive valve train and, particular, camshaft drive assembly. The assembly can various force transfer devices, such as an overhead bucket tappet or a cam follower Force devices operate severe tribological contact situations with maximum Hertzian stresses approaching 1 GN m −2 and temperatures range 100–150°C. Lubrication is often partially starved therefore, thermochemical properties surface finish of...
Diamond-like carbon (DLC) coatings are used in automotive engines for decreasing friction and increasing durability. There many variants of DLC films which provide a wide range mechanical, physical tribological properties. The can be extremely hard (>90 GPa), give low coefficients against number counterfaces exhibit wear coefficients. often considered to chemically inert. properties depend large degree on the relative proportions graphitically- (sp2) diamond-like (sp3)-bonded but inclusion...