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 16 of 16 for “"3D printing techniques"”.
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Rapid Prototyping of a Directly Heated Thermionic Triode Using 3D Printing Techniques
… heated thermionic triode was constructed using 3D printing and spot-welding techniques. Thick film silver and encapsulant materials were printed on a soda lime glass substrate to form the triode electrodes and ceramic wall bonding layer respectively. The anode was printed with a layer of silver, …
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Improving Ink Feedback Control System for Vision Controlled Jetting 3D Printer
Vision-Controlled Jetting (VCJ) is one of the 3D-printing techniques that operates by repeatedly depositing photopolymer materials in 2 dimensions onto a printing plane, solidifying them using UV light, and scanning the printing plane’s topography to readjust the printing layer accordingly. It has …
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Mask Projection Microstereolithography 3D Printing of Gelatin Methacrylate
… cell encapsulation and additive manufacturing (3D printing). However, extrusion based 3D printing is the most common technique used with GelMA. Mask projection microstereolithography (MPµSL or µSL) is an advanced 3D printing technique that can produce geometries with high resolution, high …
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3D-printed adsorbents for gas separations: A material development, kinetic assessment, and process performance investigation
… were engineered into structured contactors with 3D printing. The overall goal of this research was to improve the formulation methods of 3D-printed adsorbents and understand their performances in gas separation processes. The specific objectives were to 1) develop new adsorbent 3D-printing …
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Advanced Manufacturing of Functional Lightweight Conductive Composite Systems for Sustainable and Flexible Electronics
… properties. Additive manufacturing, specifically 3D printing, provides a cutting-edge method for producing CPCs with controlled cellular architectures. This dissertation investigates the uniaxial orientation of CPCs above the glass transition temperature (Tg) followed by foaming. The study also …
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Hydraulic fracturing through 3D printing and lattice modelling
… fracturing propagation is conducted using the 3D printing techniques and the lattice modelling. The first half of the thesis presents the experimental studies. Firstly, the potential of 3D printing on rock mechanics is explored by Polylactic acid (PLA) material, but its plastic property …
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A universal approach to stabilize water-oil interface via surfactant self-assembly
… in this study: First, a novel liquid-in-liquid 3D printing approach is developed to successfully shape extremely soft materials into complex and mechanically robust constructs with internal nanostructures using in situ self-assembly of surfactants. Second, using experimental techniques (visual …
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Biohybrid Neural Interfaces: Exploring the Role of Regional Astroglia in Neuronal Integration and Functionality
… fabricating a trial electrode array using 3D-printing techniques, testing different carrier hydrogels for neuron incorporation, and establishing a preliminary cochlear implantation and astrocytic bridging model. These developmental works laid the groundwork for the advanced experiments that …
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Bio-inspired soft robotic systems: Exploiting environmental interactions using embodied mechanics and sensory coordination
… and sensing. It is leveraged by multi-material 3D printing techniques and novel approaches and frameworks for designing mechanical structures. The findings in this thesis demonstrate that an embodied approach to soft robotics provides capabilities and behaviours that are not currently otherwise …
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4D Printing Shape Memory Polymers for Biomedical Applications
<p>The development of 3D printing techniques using shape-memory polymers (SMPs) hascreated potentials for creating dynamic, three-dimensional structures that can be produced rapidly and be customized for specific and complex architectures. These qualities have made 3D printing a popular fabrication …
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Towards a silent fan: an investigation of low-speed fan aeroacoustics
… a range of geometry modifications produced with 3D printing techniques. In terms of tonal sources which particularly impact sound quality, the mixed-flow impeller alone produces tones due to very high sensitivity to inflow distortion of the mean flow (giving unsteady blade loading). This means …
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Hybrid modelling of heterogeneous volumetric objects.
… digital fabrication employing multi-material 3D printing techniques is becoming omnipresent. However, the specific methods and tools for representation, modelling, rendering, animation and fabrication of multi-material volumetric objects with attributes are only starting to emerge. The need …
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3D Printing in Cosmetics: Investigating New Skin Delivery Platform
3D printing is an innovative manufacturing technology that can produce bespoke objects through a precise, layer-by-layer deposition of materials. While its potential in pharmaceutical manufacturing is well acknowledged, its application in the cosmetics industry remains underexplored. This study …
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Effect of Calcium Phosphate Ceramic Architectural Features on the Self-Assembly of Microvessels In Vitro
… moulds of high-resolution, three dimensional (3D) printed parts with the desired design. Parts were dried and sintered to produce patterned surfaces with higher resolution than obtainable through conventional 3D printing techniques. Given the difficulties associated with the structural …
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Geometry mediated drag reduction using riblets and wrinkled surface textures
… with a variety of micro-textures such as ribs or 3D tubules which can control surface-mediated properties such as skin friction. Inspired by the drag reducing ability of these natural structures, especially the ribbed features on shark denticles, passive drag reduction strategies such as …
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Selective laser melting of Ti-35NB alloy: Processing, microstructure and properties
… additive manufacturing (AM, also known as 3D printing) techniques have proved their capacity to manufacture metallic materials with designed complex shapes and tailored properties. The selective laser melting (SLM) is one of the most popular AM techniques, which has the ability to …