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 377 for “"CNT"”.
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Mechanics of CNT Reinforced Macrostructures
… into a cylinder with end caps, carbon nanotubes (CNTs) exhibit outstanding material properties, including high strength, electrical conductivity, and thermal conductivity. These attributes position them as exceptional candidates for reinforcing macrostructures like beams and plates. Application of …
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CHARACTERIZATION OF ELECTROSPRAYED POLY(VINYLIDENE FLUORIDE)/CNT NANOCOMPOSITE
… as electrosprayed PVDF/carbon nanotubes (PVDF/CNT) nanocomposites. The specific tasks are to determine the changes to the PVDF phases due to the electrospraying technique, and to determine the changes in the PVDF morphology due to the addition of carbon nanotubes to the polymer matrix.PVDF with …
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CNT-reinforced polymer nanocomposite by molecular dynamics simulations
… composites reinforced with carbon nanotubes (CNTs) have received significant attention due to their potential for exceptional mechanical, electrical, thermal and optical properties. The enhancement of ultimate mechanical properties of CNT reinforced polymer composites is governed not just by …
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Facilitating Non-Covalent Interactions: 'Nanoglue' for DNA-CNT Nanohybrid Complexes
… to demonstrate the existence of DNA dendrimer CNT nano-hybrids. However, the data indicating the formation of CNT-dendrimer complexes and dendrimer-DNA complexes suggest that, in solution, DNA dendrimer CNT nano-hybrids should be present. No evidence could be found to suggest that binding of …
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Investigation of CNT-induced Escherichia coli Lysis and Protein Release
… investigated the use of carbon nanotubes (CNTs) as a treatment to increase the permeability of a bacterial cell wall. Recombinant Escherichia coli BL21 (DE3) containing a plasmid that expressed Green Fluorescent Protein (GFP) and -lactamase were exposed to CNTs under various levels of …
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Electrical, Thermal, and Machining Behaviour of Injection Moulded Polymeric CNT Nanocomposites
Carbon nanotubes (CNTs) are promising additives for thermoplastics, resulting from their superior electrical, thermal and mechanical properties. Due to the desirable properties of CNT/polymer composites and their wide application in technological devices, these materials have attracted a great deal …
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Development of an internally heated FC-CVD reactor for CNT synthesis
Carbon nanotubes (CNTs) are a highly applicable material in many different applications ranging from energy storage systems to electromagnetic interference shielding devices. The macro assemblies of CNTs come in different forms including powders, textiles and sheets, which are synthesised through …
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Tensile and interfacial properties of radially aligned CNT grown carbon fibers
… with radially-grown aligned carbon nanotubes (CNTs), termed fuzzy fiber reinforced plastics (FFRPs), have exhibited enhanced inter- and intralaminar mechanical properties on model FRP systems, these results have not been replicated for aerospace-grade CFRP due to challenges in manufacturing. …
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Gas-phase processes for carbon nanotubes production: catalyst synthesis and CNT reorientation dynamics
… and electrical properties, carbon nanotubes (CNTs) have long been considered a leading material candidate for next-generation technologies in fields such as catalysis, electronics and energy storage. However, wide adoption is still hindered by the lack of economic and efficient synthesis …
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Examining the Appropriate Recovery Interval Following Maximal Exertion for Baseline Computerized Neurocognitive Testing (CNT)
… that maximal exertion negatively effects CNT test scores. Purpose: To identify the appropriate timing of the administration of CNT following maximal exertion in healthy college-aged students. Study Design: Random cross-over, repeated measures design. Methods: Participants will be …
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Control of carbon nanotube stiffness via tunable fabrication process parameters that determine CNT geometry
… the geometry of multi-walled carbon nanotubes (MWCNTs). The results may be used to grow MWCNTs with desired stiffness properties. This is important to devices that rely on the compliance of MWCNTs in order to achieve specific performance requirements, e.g. deflection or stiffness. Examples of …
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Design, Fabrication, Testing of CNT Based ISFET and Characterization of Nano/Bio Materials Using AFM
<p>A combination of Carbon Nanotubes (CNTs) and Ion Selective Field Effect Transistor (ISFET) is designed and experimentally verified in order to develop the next generation ion concentration sensing system. Micro Electro-Mechanical System (MEMS) fabrication techniques, such as photolithography, …
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Design and fabrication of meso-scale flexural testing apparatus for evaluating aligned CNT composite flexures
… possibility of using aligned Carbon Nanotube (CNT) based composites in flexures by measuring the kinematics of a composite flexure. The first phase of the research, described in this thesis, is to design, fabricate and assemble a testing apparatus optimized for evaluating aligned CNT based …
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Multiscale Modeling of CNT-Polymer Nanocomposites and Fuzzy Fiber Reinforced Polymer Composites for Strain and Damage Sensing
It has been observed that carbon nanotube (CNT)-polymer nanocomposite material has observable piezoresistive effect, that is to say that changes in applied strain may induce measurable changes in resistance. The first focus of the work is on modeling the piezoresistive response of the CNT-polymer …
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Phase morphology and fracture toughness of CNT/polytherimide modified epoxy polymer nanocomposites as matrices for advanced CFPR composites
… These heterogeneities included carbon nanotubes (CNTs) and a phase separating thermoplastic (TP) material. Two types of epoxy resins were used and compared in this study, namely a high performance tetrafunctional epoxy and a standard bifunctional type. The resulting systems included various binary …
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Experimental Characterization of Mode I Fracture Toughness of Reinforced Carbon Fiber Laminate with Nano-Cellulose and CNT Additives
… for CFRPs will be investigated. Carbon nanotube (CNT) additives were also considered for their beneficial structural properties.
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Selbstorganisation von Kohlenstoffnanoröhren zu Feldeffekttransistoren
Kohlenstoffnanoröhren (engl. carbon nanotubes, CNT) verfügen über eine Vielzahl von herausragenden und möglicherweise nutzbringenden Eigenschaften. Die kontrollierte Integration von CNT in technische Systeme stellt noch immer eine große Herausforderung dar. Im Rahmen der vorliegenden Arbeit wurden …
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Multi-scale electrical and thermal properties of aligned multi-walled carbon nanotubes and their composites
Carbon nanotubes (CNTs) are a potential new component to be incorporated into existing aerospace structural composites for multi-functional (mechanical, electrical, thermal, etc.) property enhancement and tailoring. Traditional advanced fiber reinforced polymer composites are used for aerospace …
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