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 20 of 36 for “"Advanced material"”.
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Reactor configurations to support advanced material research
… with multi-spectral capability for advance material research. This required the consideration of high and low-power levels alongside advanced fuel with high physical density and low enriched <sup>235</sup>U. Selected fuel was U-10Mo with 19.75% <sup>235</sup>U enrichment. The fuel and …
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Adsorption of Small Molecules in Advanced Material Systems
… details of adsorbate molecule and adsorbent materials, it is often difficult to describe theoretically. Molecular modeling capable of resolving physical processes at atomistic scales is an effective method for studying adsorption. In this dissertation, the adsorption of small molecules in …
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Nondestructive evaluation of complex geometry advanced material components
… components. This is further complicated if the material is inhomogeneous and anisotropic. Nevertheless with the use of advanced materials in complex geometry critical components, it is necessary to develop methods for assuring their quality during or upon completion of manufacture. This …
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Manufacture of Complex Geometry Component for Advanced Material Stiffness
… results of composite parts, which refine material properties for use in a final prototype part model. The secondary goal of this project is to explore manufacturing methods for improved manufacturability of the complex part. The manufacturing portion of the thesis and feedback into …
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Hierarchical Assembly of Polymeric Nanofibers for Advanced Material Applications
Polymer nanofibers are gaining importance due to their wide applicability in diverse fields, such as tissue engineering, fuel cells, photonics and sensors. For these applications, manufacturing aligned polymer nanofibers with precisely controlled morphology and well characterized mechanical …
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Investigation of Advanced Material Through Digital Volume Correlation Measurement Techniques
Composite materials are seeing increased industrial usage in high-performance applications were lightweight, high-strength, and material tailorability is required. Due to their heterogenous structure, displacement and strain fields developed under loading conditions are often complex and difficult …
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Phonon Behaviour at Advanced Material Interfaces using Electron Energy Loss Spectroscopy
… arise from the interaction between different materials. This thesis presents the characterization of phonons at advanced material interfaces, relevant to technological applications in thermal management, electronics, photonics, energy harvesting, and quantum devices. Using a variety of …
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Catalan vaulting in advanced material : new approaches to contemporary compressive form
… techniques offers unexplored opportunities for material and form in architecture. Recent innovations in cellular ceramics married with traditional timbrel vaulting suggest a new approach to compressive form in structural masonry spans. Research into the history and construction of timbrel vaults …
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Advanced Material Design: Multiscale Modeling and Control of Nanostructure-Property Relationships in Self-Assembling Amphiphiles
… properties of the fluids. By leveraging advanced simulation techniques such as molecular dynamics and density functional theory, coupled with empirical data, we establish a robust framework that not only describes nanostructure formation but also facilitates the manipulation of these …
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Application of advanced material analyses for the investigation of the role of nano-mechanical properties in cell - scaffold interactions
… films fabricated from various grades of these materials were first characterised on both the nano- and macro- scale in order to inform the fabrication of three-dimensional electrospun fibrous scaffolds. Such scaffolds were then fabricated with a variety of nano-mechanical properties by altering …
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Transport and segmental relaxation in polymer networks
… polymer networks play a pivotal role in enabling advanced material applications, including energy storage, ion separation, and polymer recycling. This thesis explores the transport mechanisms of ions and penetrants in polymer networks and the influence of curing conditions on network performance. …
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Annealing Techniques for Color Center Formation
… and annealing. In this thesis, we develop advanced material processing methods and characterization techniques to address critical challenges in the formation of high-performance diamond color centers to advance towards the efficient creation of desired dopant-vacancy centers with minimal …
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Utilization of Sodium Flame Synthesis for the Formation and Deposition of Pure Metal Materials for Applications in Additive Manufacturing
<p>Advanced material classes, such as high temperature alloys, ceramics, and refractory materials have become a key area of focus for expansion in the realm of additive manufacturing. Factors such as high melting points, material homogeneity, and physical properties such as ductility limit the …
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A Confocal Rheology Study of Network Stabilized Bicontinuous Emulsion Gels
In this thesis, a new bicontinuous soft material was discovered. Bicontinuous intraphase jammed emulsion gels (bipjels) were formed from critical mixtures of water and 2,6-lutidine and were stabilized with commercially produced alumina coated silica nanoparticles. Using a novel confocal rheology …
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Characterization of Material’s Elastic-plastic Properties Through Microindentation Testing with a Cylindrical Flat-tip Indenter
<p>Advanced material development requires its properties being characterized in a micro/nano scale. Traditional tests on the macro scale are impractical based on size of specimen and testing equipment. The Berkovich pyramidal sharp tip nano-indenter is not able to be used to find material's …
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Advancing sustainability in additive manufacturing: material formulation and process development for recycled PET and PET/HDPE blend
… limiting its application in high-performance materials, because of deteriorating of r-PET properties. to address the issue of reprocessing and recycling of PET or tedious sorting for waste management, this study employs a state-of-the-art approach to develop sustainable feedstock materials for …
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Reduced-Order Modeling and Design Optimization of Thermomechanical Shape Memory Alloy-Based Bistable Microactuators and Hyperelastic Material Systems
… computational approaches for modeling complex material behavior, focusing on shape memory alloys (SMAs) and hyperelastic materials. The goal is to improve both prediction accuracy and computational efficiency in simulations used for designing advanced materials and bistable microactuators. The …
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Multi-layer, Low-crosstalk Integrated Optical Switches
… on lossless optical switching systems through advanced material engineering (e.g., low-loss SiN waveguides with optimized adiabatic tapers) and hybrid modulation schemes combining electro-optic and thermo-optic tuning. Additionally, we aim to integrate fault-tolerant control algorithms and …
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Anwendung direkter Methoden zur industriellen Berechnung von Grenzlasten mechanischer Komponenten
… (i.e. realistic geometry, complex loading, advanced material modelling,…). A realistic description of the corresponding material response may require rather sophisticated constitutive models. In combination with well-known numerical tools such as the finite element method, it is in principle …
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