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https://doi.org/10.1016/j.apmt.2022.101388
Title: | A novel class of bioinspired composite via ultrasound-assisted directed self-assembly digital light 3D printing | Authors: | Li, Xinwei Lim, Kian Meng Zhai, Wei |
Keywords: | Science & Technology Technology Materials Science, Multidisciplinary Materials Science Additive manufacturing Bioinspiration Composite Cellular Directed self-assembly INTERPENETRATING PHASE COMPOSITES METAMATERIALS BEHAVIOR |
Issue Date: | 28-Jan-2022 | Publisher: | ELSEVIER | Citation: | Li, Xinwei, Lim, Kian Meng, Zhai, Wei (2022-01-28). A novel class of bioinspired composite via ultrasound-assisted directed self-assembly digital light 3D printing. APPLIED MATERIALS TODAY 26. ScholarBank@NUS Repository. https://doi.org/10.1016/j.apmt.2022.101388 | Abstract: | The advent of advanced manufacturing technologies brings about the possibilities of novel materials with potentially unprecedented material properties. Through ultrasound-assisted directed self-assembly digital light processing, we present a novel class of composite – the discontinuous interpenetrating-phase composite (d-IPC) – where the cellular filler phase is based on lines of particle assemblies, as opposed to continuous materials. Through yttria particle doping, we fully illustrate the unique microstructural-specific mechanical properties of the d-IPC. Despite being fully bulk and having a similar density (1.18 g/cm3) and strength (68 MPa) as the matrix polymer, it presents an additional plateau-deformation behaviour under large compressive strains and hence a 218% increase in specific energy absorption up to 37 J/g. The enabling mechanism is derived from the peculiar discontinuous and macroscopically aligned particle-based struts which do not contribute to a notable diminution of strength but can yet modulate high-strain deformation via induction of progressive localized failures. The concept of d-IPC is also extendable to solid fillers of all materials, morphology, and reasonable sizes, allowing the d-IPC to be highly customizable with multifunctional potentials. Through this work, we also aim to demonstrate the potentials of using advanced microstructural-controllable manufacturing techniques to achieve conceptually new and advanced composite materials. | Source Title: | APPLIED MATERIALS TODAY | URI: | https://scholarbank.nus.edu.sg/handle/10635/243319 | ISSN: | 2352-9407 2352-9407 |
DOI: | 10.1016/j.apmt.2022.101388 |
Appears in Collections: | Staff Publications Elements |
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2022-APMT-ultrasound AM.pdf | 6.38 MB | Adobe PDF | CLOSED | Published |
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