Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"materials characterisation"”.
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Establishing the optimal conditions for rotating arm erosion testing, materials characterisation and computational modelling of wind turbine blade rain erosion
… erosion: firstly through the development and characterisation of an erosion test rig; then by conducting a range of parametric studies, both numerically (finite element) and experimentally, to explore the key factors and damage mechanisms associated with leading edge erosion. This work shows …
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Development and characterisation of novel low-friction wear-resistant multiplayer nanocomposite CrAlTiCN coatings
… has been focused on the design, deposition and characterisation of novel low-friction, wear-resistant multilayer nanocomposite CrAlTiCN coatings. Systematic materials characterisation and property evaluation were conducted on the as-deposited and oxidation-tested CrAlTiCN coatings, and the …
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Superconducting Proximity Effects and Josephson Coupling in CoFeB Structures
… a review of the current field and an initial materials characterisation, CoFeB is assessed alongside the superconductor niobium (Nb) in two archetypal superconducting spintronic devices. The first of these is the superconducting spin-valve, in which a modification of the superconducting …
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Application of Radial Distribution Functions to Diffraction and Imaging Data: Interfacial Structures, Amorphous, Disordered Materials
… and pair distribution function analysis to materials characterisation problems for nanotechnology. These concepts are introduced in Chapter 1, and the associated methods are described in Chapter 2. Chapter 3 details the first of the results which discusses the design and development of a …
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Investigating direct alkaline seawater electrolysis and its impact on the oxygen evolution reaction
… with seawater using advanced electrochemical and materials characterisation techniques is presented. NiFe(OH)2 exhibits high OER activity in alkaline simulated seawater, requiring 327 and 393 mV to achieve 500 and 1000 mA cm-2 respectively at 298 K during initial testing. However, accelerated …
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Low Dose Analytical Electron Microscopy of Hybrid Perovskite Photovoltaic Devices
… photovoltaic devices are nanostructured, materials characterisation with a nanometre spatial resolution can provide valuable insights to optimise the processes involved in scalable film deposition and interconnection fabrication. This thesis presents nanoscale electron microscopy …
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Fatigue mechanisms in FV520B, a turbine blade steel.
… determine the role of the microstructure, a full materials characterisation programme was performed. The investigative techniques used to characterize the microstructures, were Transmission Electron Microscopy (TEM); Analytical Scanning Electron Microscopy (ASEM); optical microscopy; dilatometry …
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Development of an inverse FE modelling method for material parameters identification based on indentation tests
… of the inverse program, which are important for materials characterisation. The program was evaluated with blind tests using numerical experimental data of known material properties. The validated method was then successfully used to study the properties of EVA foams for midsole of sport shoes …
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The synthesis, characterisation and bioapplications of Novel Gold-Zinc Telluride Core-shell Nanoparticles
… morphological, crystalline and surface chemistry characterisation. Subsequent to materials characterisation, Au-ZnTe nanoparticles was evaluated for its potential toxicity using in vitro and in vivo systems. The nanoparticle was surface modified through conjugation with 5-FU and human epidermal …
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Molecular Engineering of Dipolar and Octupolar Non-Linear Optical Materials for Next-Generation Telecommunications
… molecular engineering and design of new organic materials continues apace. Such materials are particularly attractive on account of their fast optical response times, and superior non-linear optical susceptibilities, relative to their traditional inorganic counterparts. While dipolar molecules …
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Design, synthesis, and characterisation of transition-metal dicarboxylate anodes for lithium-ion batteries
… limited, expensive, non-renewable, and toxic materials. To ensure future proofing of battery technology, new materials and methods that overcome the current shortcomings need to be developed. The work in this thesis develops the use of transition-metal dicarboxylates as anode materials for Li …
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Characterising Nanostructure and Understanding its Influence on Phase Stability and Performance in Halide Perovskites
… properties in beam-sensitive halide perovskite materials. Utilising Scanning Electron Diffraction, I first show that deep trap states in perovskite materials are strongly correlated with the presence of phase impurities on nm length scales. I then show that these very phase impurities, which are …