Broadband mechanical metamaterial absorber enabled by fused filament fabrication 3D printing

Lim, Dahyun Daniel; Park, Jin-Woo; Lee, Jaemin; Noh, Dowon; Lee, Jeongwoo; Choi, Ji Min; Choi, Wonjoon

doi:10.1016/j.addma.2022.102856

Cited by 14 publications

(20 citation statements)

References 43 publications

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“…Additive Manufacturing, or 3D printing technologies are good options as a processing technology compared with the traditionally employed processes since they have the advantage of allowing easy design change without the need of building new molds each time, as well as the ability of easily building complex and customizable architectures. [34][35][36][37] Among several 3D printing technologies, FFF presents low cost, large amount of applicable materials, and straightforward operation. [38] The two most used thermoplastic polymers in FFF are acrylonitrile-butadiene-styrene (ABS) [39][40][41][42] and PLA [43][44][45] due to their rheological and thermal properties that are well suited for this process.…”

Section: Introductionmentioning

confidence: 99%

Sandwich structures based on fused filament fabrication 3D‐printed polylactic acid honeycomb and poly(vinylidene fluoride) nanocomposites for microwave absorbing applications

et al. 2023

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Polylactic acid (PLA)—based honeycomb samples with different cell sizes and thickness were prepared using the fused filament fabrication (FFF) 3D printing technology and used to build sandwiched multilayer structures consisted of the honeycomb as the core component and poly(vinylidene fluoride) (PVDF) and/or PVDF/carbon nanotube (CNT) nanocomposites as top and bottom layers. The effect of the honeycomb design (cell size and thickness) and the presence and nature of the impedance matching layer on the microwave absorbing properties of the corresponding structures was investigated in the X‐band (8.2–12.4 GHz) and Ku‐band (12.4–18 GHz). For the systems without matching layer or with neat PVDF film as the matching layer, the honeycomb with larger thickness (5 mm) and larger cell size resulted in better electromagnetic wave attenuation but narrow frequency bandwidth with RL below −10 dB. The best combination minimum RL value (−18 to −14 dB) and broad frequency bandwidth with attenuation higher than 90% (around 8 GHz) was achieved with honeycomb of 2 mm thickness sandwiched by PVDF/CNT05 as the matching layer and bottom layer constituted by PVDF/CNT1 film, regardless the cell size of the honeycomb. These results indicate the PLA honeycomb as promising candidate as component for multilayer microwave absorbing materials and open new possibilities of applications of FFF technology for designing flexible, lightweight, and low‐cost materials to be used in both civil and military industries.

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Section: Introductionmentioning

confidence: 99%

Sandwich structures based on fused filament fabrication 3D‐printed polylactic acid honeycomb and poly(vinylidene fluoride) nanocomposites for microwave absorbing applications

et al. 2023

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“…In this section, we focus on summarizing the design strategies of BMAs, mainly including three core strategies, such as top-down lithography form, [112,138,159,173,71,[271][272][273][274][275][276][277][278][279][280][281][282][283][284] bottom-up self-assembly technology, and emerging 3D printing technology. [306][307][308][309][310][311][312][313][314][315][316][317] Broadband absorption responses obtained by top-down lithography can be further divided into the following categories, such as i) planar design method, [271][272][273] ii) vertical design method, [159,[274][275][276] iii) adding active materials design method, [173,[277][278][279] and iv) coding design method. [71,[280][281] In describing self-assembly technology for designing a...…”

Section: Coupled Mode Theorymentioning

confidence: 99%

“…Due to its inherent lightness, affordability, and low space constraints, the design, and fabrication of BMAs using this technology have expanded considerably. [307][308][309][310][311][312][313][314][315][316][317] Figure 11a depicts the fabrication of BMA by a 3D printing technique, [306] which is a layer-by-layer build-up technique. The absorption spectrum in Figure 11c shows that BMA achieves high absorption within a continuous bandwidth of 1.19 THz, and the experimental and simulated results are in high agreement.…”

Section: D Printing Technology For Broadband Metamaterials Absorbersmentioning

confidence: 99%

“…An octet-truss microwave mechanical BMA consisting of carbon black-based framework composites was introduced and demonstrated. [316] In addition to achieving more than 90% absorption in the frequency range of 5.8-18 GHz while maintaining an almost constant stiffness of 1.37 per unit mass density at low density. In combination with different requirements, flexible BMAs can also be realized by 3D printing technology.…”

Section: D Printing Technology For Broadband Metamaterials Absorbersmentioning

confidence: 99%

“…In addition, the emerging 3D printing technology is a good choice for the preparation of BMAs because this technology can overcome the fabrication complexities of traditional multistep photolithography processes. [307,311,316] Some lithography-free techniques can also be used to design BMAs, but such broadband absorption is usually effective in high-frequency bands (such as visible, NIR) and difficult in lowfrequency operating regions of THz and microwave. [336,606,607] The absorption bandwidth of currently designed BMAs is usually not large or ideal, which is mainly reflected in the total absorption bandwidth, especially the relative absorption bandwidth.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

See 2 more Smart Citations

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Wang

Duan

et al. 2023

Adv Funct Materials

117

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Metamaterial absorbers have been widely studied and continuously concerned owing to their excellent resonance features of ultra-thin thickness, light-weight, and high absorbance. Their applications, however, are typically restricted by the intrinsic dispersion of materials and strong resonant features of patterned arrays (mainly referring to narrow absorption bandwidth). It is, therefore essential to reassert the principles of building broadband metamaterial absorbers (BMAs). Herein, the research progress of BMAs from principles, design strategies, tunable properties to functional applications are comprehensively and deeply summarized. Physical principles behind broadband absorption are briefly discussed, typical design strategies in realizing broadband absorption are further emphasized, such as top-down lithography, bottom-up self-assembly, and emerging 3D printing technology. Diversified active components choices, including optical response, temperature response, electrical response, magnetic response, mechanical response, and multi-parameter responses, are reviewed in achieving dynamically tuned broadband absorption. Following this, the achievements of various interdisciplinary applications for BMAs in energy-harvesting, photodetectors, radar-IR dual stealth, bolometers, noise absorbing, imaging, and fabric wearable are summarized. Finally, the challenges and perspectives for future development of BMAs are discussed.

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A Novel Ultra‐Wideband Electromagnetic‐Wave‐Absorbing Metastructure Inspired by Bionic Gyroid Structures

Liao

et al. 2023

Advanced Materials

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Traditional honeycomb‐like structural electromagnetic (EM)‐wave‐absorbing materials have been widely used in various equipment as multifunctional materials. However, current EM‐wave‐absorbing materials are limited by narrow absorption bandwidths and incidence angles because of their anisotropic structural morphology. The work presented here proposes a novel EM‐wave‐absorbing metastructure with an isotropic morphology inspired by the gyroid microstructures seen in Parides sesostris butterfly wings. A matching redesign methodology between the material and subwavelength scale properties of the gyroid microstructure is proposed, inspired by the interaction mechanism between the microstructure and the material properties on the EM‐wave‐absorption performance of the prepared metastructure. The bioinspired metastructure is fabricated by additive manufacturing (AM) and subsequent coating through dipping processes, filled with dielectric lossy materials. Based on simulations and experiments, the metastructure designed in this work exhibits an ultrawide absorption bandwidth covering the frequency range of 2–40 GHz with a fractional bandwidth of 180% at normal incidence. Moreover, the metastructure has a stable frequency response when the incident angle is 60° under transverse electric (TE) and transverse magnetic (TM) polarization. Finally, the synergistic mechanism between the microstructure and the material is elucidated, which provides a new paradigm for the design of novel ultra‐broadband EM‐absorbing materials.

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Broadband mechanical metamaterial absorber enabled by fused filament fabrication 3D printing

Cited by 14 publications

References 43 publications

Sandwich structures based on fused filament fabrication 3D‐printed polylactic acid honeycomb and poly(vinylidene fluoride) nanocomposites for microwave absorbing applications

Sandwich structures based on fused filament fabrication 3D‐printed polylactic acid honeycomb and poly(vinylidene fluoride) nanocomposites for microwave absorbing applications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

A Novel Ultra‐Wideband Electromagnetic‐Wave‐Absorbing Metastructure Inspired by Bionic Gyroid Structures

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