Mechanical properties of 3D printed ceramic cellular materials with triply periodic minimal surface architectures

Shen, Minhao; Qin, Wei; Xing, Bohang; Zhao, Wenchao; Gao, Shuyue; Sun, Ying; Jiao, Ting; Zhao, Zhe

doi:10.1016/j.jeurceramsoc.2020.09.062

Cited by 86 publications

(26 citation statements)

References 26 publications

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“…Figure 4h reviews the mechanical strength of different 3D‐printed ceramics. [ 48–67 ] The data shows that the materials developed in this work exhibited far better mechanical strength. In addition to good mechanical strength, materials thickness with respect to EM absorption performance is also an important factor to evaluate the usefulness of a material absorber.…”

Section: Resultsmentioning

confidence: 84%

“…With the growth of the PyC into the Al 2 O 3 matrix, the mechanical strength of the PyC‐Al 2 O 3 ceramic composites increased by 27% to 326.7 MPa, which is the highest among all the 3D printed ceramic materials. [ 48–67 ] The improvement of the mechanical strength is explained by the fact that the presence of carbon between the alumina grains significantly change the fracture mode from transgranular to intergranular, as it can be seen from the SEM images in Figure S2 (Supporting Information), besides reducing the porosity in the sample. Moreover, the formation of the carbon phase can support crack deflection, which increases the toughness and hence leads to an improved mechanical strength of a material.…”

Section: Resultsmentioning

confidence: 99%

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Structural Electromagnetic Absorber Based on MoS₂/PyC‐Al₂O₃ Ceramic Metamaterials

Liu

et al. 2023

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Limited by the types of suitable absorbents as well as the challenges in engineering the nanostructures (e.g., defects, dipoles, and hetero‐interface) using state‐of‐the‐art additive manufacturing (AM) techniques, the electromagnetic (EM) wave absorption performance of the current ceramic‐based materials is still not satisfying. Moreover, because of the high residual porosity and the possible formation of cracks during sintering or pyrolysis, AM‐formed ceramic components may in many cases exhibit low mechanical strength. In this work, semiconductive MoS2 and conductive PyC modified Al2O3 (MoS2/PyC‐Al2O3) ceramic‐based structural EM metamaterials are developed by innovatively harnessing AM, precursor infiltration and pyrolysis (PIP), and hydrothermal methods. Three different meta‐structures are successfully created, and the ceramic‐based nanocomposite benefit from its optimization of EM parameters. Ultra‐broad effective absorption bandwidth (EAB) of 35 GHz is achieved by establishment of multi‐loss mechanism via nanostructure engineering and fabrication of meta‐structures via AM. Due to the strengthening by the PyC phase, the bending strength of the resulting ceramics can reach ≈327 MPa, which is the highest value measured on 3D‐printed ceramics of this type that has been reported so far. For the first time, the positive effect deriving from the engineering of the microscopic nano/microstructure and of the macroscopic meta‐structure of the absorber on the permittivity and EM absorption performance is proposed. Integration of outstanding mechanical strength and ultra‐broad EAB is innovatively realized through a multi‐scale design route. This work provides new insights for the design of advanced ceramic‐based metamaterials with outstanding performance under extreme environment.

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Structural Electromagnetic Absorber Based on MoS₂/PyC‐Al₂O₃ Ceramic Metamaterials

Liu

et al. 2023

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“…Although the relative foam density is often used in foam‐related equations, this term represents a fraction of the material in foam structure, therefore it could also be replaced by (1− ϕ ) for modeling the scaffolds. According to the experience and review of 3D models, the power‐law relations or Gibson‐Ashby (GA model) and the model developed by Zhu et al for cubic and tetrakaidecahedron geometry, 29,83 should be more adaptable to the scaffold's structure:

E_{normalf} = E_{normals} {((), 1 goodbreak- φ)}^{2} (based on cubic unit cell)

E_{normalf} = E_{normals} \frac{0.726 {(1 goodbreak- φ)}^{2}}{1 + 1.09 (1 - φ)} (based on tetrakaidecahedron unit cell)

…”

Section: Resultsmentioning

confidence: 99%

Theoretical and experimental investigation of solubility and Young's modulus models for polyhydroxybutyrate‐based electrospun scaffolds

Mohammadalipour

Behzad

Karbasi

et al. 2023

J of Applied Polymer Sci

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Over the past decades, limited strategies have been developed to study nanomechanical properties. The in-depth study on the nanomechanical properties of electrospun scaffolds can provide better insights at greater scales. Atomic force microscopy (AFM) nanoindentation is an authoritative method that can characterize mechanical properties. In this research, theoretical solubility studies of polyhydroxybutyrate (PHB) in different solvents were initially carried out. Then, three series of PHB-based mats were prepared, including PHB/lignin, PHB/cellulose nanofiber (CNF), and PHB/lignin/CNF. The theoretical modulus of samples was studied from two different standpoints, through the use of nanoindentation on a single nanofiber. First, scaffolds were considered as a series of short fiber reinforced nanocomposites (NCs). In the second viewpoint, the geometrical structure of each scaffold was considered similar to an open-cell foam (OCF). Consequently, modeling outputs verified that among NC models, isotropic Halpin-Tsai presented plausible predictions with '93.36 to 99.77% accuracy. In addition, Tetrakaidecahedron indicated more accurate predictions among OCF models for the mats ('78.99 to 96.15% adaption). Indeed, the theoretical NC and OCF models were able to provide acceptable forecasts for the application range of electrospun fibers. Based on this, nanoscale investigation of mechanical properties can turn a new page to estimate the further application of mats.

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“…Also, that was exactly what happened. The TPMS structures were introduced to alleviate the stress concentrated on the joints [39]. However, this was not the way that things turned out.…”

Section: Effect Of Structural Configurationmentioning

confidence: 99%

Mechanical properties of additively-manufactured cellular ceramic structures: A comprehensive study

Zhang

et al. 2022

J Adv Ceram

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Cellular ceramic structures (CCSs) are promising candidates for structural components in aerospace and modern industry because of their extraordinary physical and chemical properties. Herein, the CCSs with different structural parameters, i.e., relative density, layer, size of unit cells, and structural configuration, were designed and prepared by digital light processing (DLP)-based additive manufacturing (AM) technology to investigate their responses under compressive loading systematically. It was demonstrated that as the relative density increased and the size of the unit cells decreased, the mechanical properties of one-layer CCSs increased. The mechanical properties of three-layer CCSs were more outstanding than those of the CCSs with one and two layers. In addition, structural configurations also played a vital role in the mechanical properties of the CCSs. Overall, the mechanical properties of the CCSs from superior to inferior were that with the structural configurations of modified body-centered cubic (MBCC), Octet, SchwarzP, IWP, and body-centered cubic (BCC). Furthermore, structural parameters also had significant impacts on the failure mode of the CCSs under compressive loading. As the relative density increased, the failure mode of the one-layer CCSs changed from parallel—vertical—inclined mode to parallel—vertical mode. It was worth noting that the size of the unit cells did not alter the failure mode. Inclined fracture took a greater proportion in the failure mode of the multi-layer CCSs. But it could be suppressed by the increased relative density. Similarly, the proportions of the parallel—vertical mode and the fracture along a specific plane always changed with the variation of the structural configurations. This study will serve as the base for investigating the mechanical properties of the CCSs.

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Mechanical properties of 3D printed ceramic cellular materials with triply periodic minimal surface architectures

Cited by 86 publications

References 26 publications

Structural Electromagnetic Absorber Based on MoS₂/PyC‐Al₂O₃ Ceramic Metamaterials

Structural Electromagnetic Absorber Based on MoS₂/PyC‐Al₂O₃ Ceramic Metamaterials

Theoretical and experimental investigation of solubility and Young's modulus models for polyhydroxybutyrate‐based electrospun scaffolds

Mechanical properties of additively-manufactured cellular ceramic structures: A comprehensive study

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Mechanical properties of 3D printed ceramic cellular materials with triply periodic minimal surface architectures

Cited by 86 publications

References 26 publications

Structural Electromagnetic Absorber Based on MoS2/PyC‐Al2O3 Ceramic Metamaterials

Structural Electromagnetic Absorber Based on MoS2/PyC‐Al2O3 Ceramic Metamaterials

Theoretical and experimental investigation of solubility and Young's modulus models for polyhydroxybutyrate‐based electrospun scaffolds

Mechanical properties of additively-manufactured cellular ceramic structures: A comprehensive study

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Product

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Structural Electromagnetic Absorber Based on MoS₂/PyC‐Al₂O₃ Ceramic Metamaterials

Structural Electromagnetic Absorber Based on MoS₂/PyC‐Al₂O₃ Ceramic Metamaterials