Electrical conductivity of 3D periodic architectured interpenetrating phase composites with carbon nanostructured-epoxy reinforcements

Abueidda, Diab W.; Al‐Rub, Rashid K. Abu; Dalaq, Ahmed S.; Younes, Hammad; Ghaferi, Amal Al; Shah, Tushar

doi:10.1016/j.compscitech.2015.08.021

Cited by 45 publications

(21 citation statements)

References 40 publications

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“…The table also presents the numerically obtained scaling laws for different sheet‐network lattices investigated in the literature at different RDs. The presented data confirm that the different sheet‐network lattices exhibit a near stretching–dominated mode of deformation as opposed to the bending‐dominated behavior exhibited by the solid‐network lattices investigated by Montazerian et al[72a] Dalaq et al[46d] investigated the effects of architecture, volume fraction, and modular ratio on the effective elastic properties of IPCs with sheet‐network TPMS topologies used as the reinforcement phases. Their results showed that the effect of architecture is more pronounced when the contrast in the modular ratio is high.…”

Section: Mechanical Behaviorsupporting

confidence: 76%

“…Material jetting is a technique in which inkjet heads are used to jet droplets of a material or a photo‐sensitive polymer into a building tray and then the material cools down or the photo‐polymer is cured using UV light. This technique was first introduced in 2001 and was used in several studies to fabricate TPMS‐based lattices and interpenetrating phase composites (IPCs)[13c,22,46] (Section ). For this technique, some AM systems use wax as a support material which can be removed by a further thermal treatment process.…”

Section: Manufacturability Of Tpms‐based Metamaterialsmentioning

confidence: 99%

“…It worth mentioning that the elastic and yield properties of TPMS‐based materials can be investigated using single unit cells with periodic or mixed boundary conditions to avoid expensive computational cost . This approach has been adopted in several studies that investigated TPMS‐based lattices [5d,7e,28a,46d,71]. However, it can be argued that the post‐yield deformation and failure behaviors are usually nonperiodic and therefore shall be investigated using full models containing enough unit cells to capture the effective properties and post‐yield behavior [29b,30c,30f,45b].…”

Section: Mechanical Behaviormentioning

confidence: 99%

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Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

2019

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In nature, cellular materials exhibit enhanced multifunctionalities driven mainly by their sophisticated topologies and length scales. These natural systems have inspired the development and expansion of synthetic architected materials for revolutionary applications. Consequently, both the design and synthesis techniques gained considerable attention and have massively progressed over the last few decades. Such materials with topology-controlled properties are commonly known as "metamaterials." Architected materials with topologies based on triply periodic minimal surfaces (TPMS) which are of particular interest have attracted much attention recently due to their mathematically controlled fascinating topologies and their exhibited physical and mechanical properties. Herein, the design, synthesis, and use of TPMS in the field of metamaterials and metacomposites for several applications are focused upon. The design process to create TPMS-based 3D lattices is summarized and the different manufacturing processes used to fabricate these lattices are highlighted. Herein, the materialtopology-mechanical properties relationship of different TPMS-based lattices that are investigated in the literature is discussed. A further objective is to highlight the applications where TPMS-based lattices or composites can be efficiently used as well as the research areas to be explored. development of macro/micro/nanomechanics-based constitutive models and computational tools that can be used effectively in guiding the design of advanced materials. He is particularly active in using digital design and 3D printing for creating multifunctional architected materials and composites for various applications.

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Section: Mechanical Behaviorsupporting

confidence: 76%

Section: Manufacturability Of Tpms‐based Metamaterialsmentioning

confidence: 99%

Section: Mechanical Behaviormentioning

confidence: 99%

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Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

2019

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“…The thermal conductivity of CNTs is more than seven times higher than that of copper, which is well known for having a good thermal conductivity of 385 W/Mk [19][20][21][22]. Because of their remarkable thermal, electrical, mechanical properties, and low density, carbon nanotubes are ideal materials for reinforcement in composites [23][24][25][26][27], sensors [28], and many other applications, such as thermal managements [29][30][31].…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Nanofluids Based on Carbon Nanostructures

Younes¹,

Ghaferi²,

Saadat³

et al. 2016

Advances in Carbon Nanostructures

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A nanofluid consists in a liquid suspension of nanometer-sized particles. These fluids may contain (or not) surface-active agents to aid in the suspension of the particles. Nanometer-sized particles have higher thermal conductivity than the base fluids. Oxides, metals, nitrides, and nonmetals, like carbon nanotubes, can be used as nanoparticles in nanofluids. Water, ethylene glycol, oils, and polymer solutions can be used as base fluids. In this chapter, we summarize the recent studies of using CNTs and graphene to improve the thermal conductivity of nanofluids. Moreover, we refer to the studies about the effect of using magnetic fields on enhancing the thermal conductivity of nanofluids. Too much discrepancy about thermal conductivity of nanofluids can be found in the literature. For carbon nanofluids, unfortunately, no significant improvements on thermal conductivity are observed using low concentrations. Different improvement percentages have been reported. This variation in the thermal conductivity can be attributed to many factors, such as particle size temperature, pH, or zeta potential. We believe that more research efforts need to be made in order to, first, improve the thermal conductivity of nanofluids and, second, assess the effect of the different parameters and conditions on the thermal conductivity of nanofluids.

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“…Theoretically, the electrical current density of metallic SWNTs was found to be 1000 times more than that of metals such as silver and copper [2]. The remarkable structural, thermal, electrical and mechanical properties make CNTs a potential material in many applications such as nanocomposites [3][4][5][6], nanofluids [7][8][9][10] and lubricating technology [11][12][13][14][15][16]. For lubricating technology, this has opened up a realm of research opportunities.…”

Section: Introductionmentioning

confidence: 99%

TC Study of Manufacturable Nano Grease: Evidence of 3D Network Structure

et al. 2018

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Surfactant-free grease made from carbon nanotube and carbon nanofibers has shown improvement in thermal conductivity. Time-dependent thermal conductivity (TC) magnetic study with different (Fe 2 O 3 concentrations and Ni-coated carbon nanotubes) was performed. The results show that under the influence of a strong magnetic field, the TC value remains constant even with different processing times, magnetic fields, and Fe 2 O 3 concentrations. An explanation for these results could be that for a high loading of CNTs ([ 10 wt%), CNTs become associated strongly with each other by van der Waals forces and form a three-dimensional network (3D), which makes magnetic alignment of nanotubes very unlikely. A slight change on the TC of carbon nanofibers grease was noticed, which is probably because of the weak Van der Waals forces among the nanofibers. Mixing the CNFs with SWNTs produced a stable grease as SWNTs help to create the 3D network structure; however, the TC has dropped to 0.37 W/mK which is attributed to the lower TC of the SWNTs grease itself. The scientific merit of this paper is that the results provide further support that the CNTs form a 3D network structure and move forward the R&D work of manufacturable carbon nano grease.

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Electrical conductivity of 3D periodic architectured interpenetrating phase composites with carbon nanostructured-epoxy reinforcements

Cited by 45 publications

References 40 publications

Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

Multifunctional Mechanical Metamaterials Based on Triply Periodic Minimal Surface Lattices

Nanofluids Based on Carbon Nanostructures

TC Study of Manufacturable Nano Grease: Evidence of 3D Network Structure

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