Global ETD Search
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Showing 1 to 8 of 8 for “"Extrusion 3D printing"”.
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Polylactic Acid based Blends and Composites for Material Extrusion 3D Printing: Formulation, Characterization, and Processing
… nanocrystals (CNCs), suitable for material extrusion 3D printing. In the first part, epoxidized canola oil (ECO), was utilized as a compatibilizer for PLA/PBAT blends at different weight ratios to produce toughened materials suitable for 3D printing applications. The incorporation of ECO …
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Material and process development for material extrusion metal additive manufacturing using recycled nickel
Metal Extrusion 3D-printing is a cost-effective alternative to powder bed fusion for producing metal parts, but limited material compatibility with this technique and reliance on virgin resources hinder wider adoption and raise sustainability concerns due to the depletion of natural resources. This …
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Fundamental and applied studies of polymeric photonic crystals: the role of polymer architecture and 3D printing
… well as glass transition temperatures below melt extrusion 3D printing operating conditions, and were shown to self- assemble into PCs during the process of 3D printing. DBCP PCs represented the first example of 3D printing structural color. For BBCPs, the backbone composition's effect on the …
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Atomistic modeling of crack tip behavior in ductile materials
… 2D simulated system and is expected to occur in 3D crystals by other additional mechanisms. Second, building upon the concurrent atomistic-continuum multiscale modeling framework, the isolated effect of material dissolution on crack growth is investigated. A series of dissolution simulations are …
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COOLING THEORY FOR THERMOPLASTIC MATERIALS USED IN SCREW EXTRUSION ADDITIVE MANUFACTURING
Large format 3D printing of thermoplastic polymers is a fast growing technology for industrial tools manufacturing and enables the production of meters long workpiece in a fraction of time, material and cost than conventional subtractive solutions. Due to the scale and timing imposed by the …
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3D Printing of Soft and Biological Materials: Applications to Human Cochlear Modelling and Beyond
3D printing has emerged as a promising tool for on-demand and rapid fabrication of materials. The field of soft material printing typically utilises inks that exhibit viscoelastic properties with elastic moduli in the kPa – MPa range, such as hydrogels and elastomers. Although soft material …
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3D printing of bone scaffolds using powders derived from biogenic sources
… 6 deal with the fabrication of scaffolds by 3D printing, following two different approaches. In the study presented in Chapter 5, the powders synthesized from cuttlebones, mussel shells and eggshells were used in combination with a thermoplastic polymer (PCL, polycaprolactone) to obtain …