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 12 of 12 for “"Composites materials"”.
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Bio-composites materials from engineered natural fibres for structural applications
… fibre reinforced petrochemical-derived polymer composites along with potential improvement in mechanical properties for natural fibre reinforced bio-derived polymer composites, have long been a motivation for further research and innovation in natural fibre composites. Harakeke and hemp fibres, …
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Development of the Weaving Machine and 3D Woven Spacer Fabric Structures for Lightweight Composites Materials
The need for innovative lightweight materials are rapidly increased in the recent years, owing to their cost-effective, high-strength, environmentally-sound use of materials and process technologies, in addition to that they reduce the weight of a product. The characteristics of 3D-spacer fabrics …
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Radiation Effects on Thermal Properties of Advanced Nuclear Materials
… have emerged as promising neutron moderating materials due to their exceptional hydrogen density leading to superior moderating power. Yet, the radiation-induced microstructural evolution and its correlation to macroscopic thermal transport phenomena remain insufficiently characterized. In …
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Single Polymer Micro- and Nano- Composites
… to improve the recyclability of composite materials has recently emerged. In order to fulfill this new requirements, a possible strategy could be represented by the development of so-called "single polymer composites" (SPCs), i.e. composite materials in which both matrix and reinforcement …
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Bonding properties of innovative CAD-CAM composite biomaterials for dental prostheses
… the industry has developed various innovative composites materials to perform customized Computer-Aided Designed and Manufactured (CAD-CAM) dental prostheses. Two sub-classes of CAD-CAM composites can be distinguished in function of their microstructure: the dispersed filler and the …
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Novel method for carbon nanofilament growth on carbon fibers
… with potential applications in structural composites. Employing a relatively new method, in which carbon structures are grown from fuel rich combustion mixtures on certain catalytic metals, multiscale filament structures were grown from ethylene/oxygen mixtures at 550 °C on commercial PAN …
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Generation of Multi-Scale Thermoplastic Composites for Use in Injection Molding and Fused Filament Fabrication
Thermoplastic composites that have been reinforced by thermotropic liquid crystalline (TLCP) fibrils in the microscale and by nanoparticles in the nanoscale are defined as multi-scale wholly thermoplastic composites (WTCs). Multi-scale WTCs have been proposed as lightweight replacements with high …
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Επίδραση της αναπτυσσόμενης βλάβης που προέρχεται από διαφορετικές αιτίες στη μηχανική συμπεριφορά συνθέτων υλικών
Ο σκοπός της παρούσης διδακτορικής διατριβής ήταν η θεωρητική και πειραματική μελέτη της επίδρασης της αναπτυσσόμενης βλάβης που προέρχεται από διαφορετικές αιτίες στην μηχανική συμπεριφορά συνθέτων υλικών. Οι πηγές βλάβης που μελετήθηκαν ήταν: 1.Υγροθερμική Κόπωση 2. Θερμική Κόπωση 3. Ύπαρξη …
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Damage detection in reinforced concrete square slabs using modal analysis and artifical neural network
… the potential damage in the structure. Damage in composites and the non-homogeneous material is tricky to assess from a surface inspection alone. Although the development of NDTs, especially experimental modal analysis (EMA), has been pushed forward by the aerospace industry where composites …
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Graphene/Oxide Interactions with Polymer Networks Modeled Using Molecular Dynamics
… great promise as an additive to Polymer Matrix Composites (PMCs) for material property enhancement. Achieving homogeneous dispersion of the graphene platelets within a polymeric network is critical to realizing these enhancements. Research has shown that achieving homogeneous dispersion of …
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Synthesis and development of boron nanotubes and metal/ceramic-carbon nanotube composites
… strength metal and ceramic-carbon nanotube (CNT) composites extending prior work in our group of iron-carbon nanotubes composites. Both laboratory scale and scaled up setups were developed and were successfully used in producing the uniformly nanotube filled composites. The synthesis of composites …
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Design and Optimization of Angiogenic, Antibacterial Si-Zn-Hydroxyapatite for Use as Filler Particles in Polycaprolactone Nanocomposites
The development of synthetic biomaterials that replicate the biological functionality and mechanical resilience of native bone remains a central challenge in tissue engineering. Hydroxyapatite (HAp) is a widely used osteoconductive ceramic, but clinical outcomes can be limited by relatively low …