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| Naji, M. |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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Zavabeti, Ali
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Publications (7/7 displayed)
- 2024Strain Driven Electrical Bandgap Tuning of Atomically Thin WSe<sub>2</sub>citations
- 2023Coating of gallium-based liquid metal particles with molybdenum oxide and oxysulfide for electronic band structure modulationcitations
- 2023Atomically Thin Gallium Nitride for High‐Performance Photodetectioncitations
- 2021Ultrathin Ga2O3 Glasscitations
- 2019Liquid metal synthesis of two-dimensional aluminium oxide platelets to reinforce epoxy compositescitations
- 2017Sonication-Assisted Synthesis of Gallium Oxide Suspensions Featuring Trap State Absorption: Test of Photochemistrycitations
- 2017Wafer-scale two-dimensional semiconductors from printed oxide skin of liquid metalscitations
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article
Liquid metal synthesis of two-dimensional aluminium oxide platelets to reinforce epoxy composites
Abstract
<p>A liquid metal synthesis process provides a new low energy pathway avenue to manufacture various low-dimensional nanomaterials in order to improve the mechanical properties of polymer composites. This paper presents an investigation of the strengthening and toughening performances of two-dimensional platelets of boehmite (γ-AlO(OH)) and alumina (γ-Al<sub>2</sub>O<sub>3</sub>). Using a liquid metal alloy reaction process, two-dimensional metal oxide hydroxide and oxide platelets were synthesised and then used for reinforcing epoxy polymer composites at different weight fractions up to 10%. Both boehmite and alumina platelets increased the tensile modulus, yield stress and fracture toughness of the epoxy composite by up to 40%, 35% and 320%, respectively. Of the two materials, the boehmite platelets were more effective than the alumina platelets in increasing the tensile modulus (up to 27%) and ultimate strength (up to 14%) of the epoxy. In contrast, the alumina platelets promoted a 50% greater improvement to the mode I fracture energy when compared to using boehmite platelets. The primary mechanisms responsible for the measured property improvements are identified.</p>