Influence of nickel coating on the interfacial bonding characteristics of carbon nanotube–aluminum composites

Song, H.Y.; Zha, Xin-Wei

doi:10.1016/j.commatsci.2010.06.044

Cited by 46 publications

(24 citation statements)

References 31 publications

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“…From compressive tests, Silvestre et al obtained a 50 to 100% increase in the Young's modulus of Al-CNT [19] when (6,6) CNT was inserted. The effects of defects in the CNT [20], orientations of the CNT [21], and the interfacial bonding character of Ni coatings [22] on mechanical properties have also been studied with MD simulations.…”

Section: Introductionmentioning

confidence: 99%

Atomistic behavior of nanoporous carbon nanotube-aluminum composite under compressive loading

Suk

2020

Mater. Res. Express

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Metal matrix nanocomposites have been actively studied to discover the characteristics of a new class of materials. In the present study, metal matrix nanocomposites are investigated using molecular dynamics simulations of the compressive behavior of nanoporous carbon nanotube (CNT)aluminum (Al) composites that have a density of approximately 77% to that of pure Al. The weightreduced nanocomposites exhibited an enhanced Young's modulus of 138%, and a compressive strength degraded by 13% compared with pure Al. Through stress decomposition into CNT and Al constituents, it was observed that the Young's modulus was enhanced due to the high stiffness of the CNTs; further, the reduced strength was primarily due to the early failure strain. The effects of CNT volume fractions and sizes are further analyzed using the rule of mixture, which is modified by the interphase area definition. In addition, the atomistic details of the structure and stress revealed a buckling behavior in the CNT as well as a massive slip behavior in the Al matrix during plastic deformation. The results presented in this study will have implications in the design and development of metal matrix nanocomposites for applications in high-performance lightweight materials.

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Section: Introductionmentioning

confidence: 99%

Atomistic behavior of nanoporous carbon nanotube-aluminum composite under compressive loading

Suk

2020

Mater. Res. Express

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“…In previous published studies, both zigzag [40] and armchair [36][37][38][39][41][42][43] CNTs were used to strengthen different types of material. And the (4,4) CNT [36,37,42,43] was often used to simulate the mechanical properties of CNT/metal composites. When investigating the strengthening effect, the present work is limited to a smaller diameter of CNT, that is, (4,4) CNT.…”

Section: Methodsmentioning

confidence: 99%

“…Particularly for the study of failure mechanisms, MD simulations have significant advantages due to the capability of capturing dynamic atomic behaviors [30,31]. As for CNT/Ni nanocomposites, a series of MD simulation or ab initio MD simulation works have concentrated on the growth mechanism of CNT on the surface of Ni nanoparticles [32][33][34][35] or using Ni as a coating on CNT surface to provide an effective channel for load transfer between the CNT and metals (Al [36], Au [37], Mg [38], Cu [39]). Investigations and analyses, however, of using CNT as a reinforced material in Ni matrix, especially HONNs, are still rare.…”

Section: Introductionmentioning

confidence: 99%

Study on Lightweight and Strengthening Effect of Carbon Nanotube in Highly Ordered Nanoporous Nickel: A Molecular Dynamics Study

Zhang

Jiang

et al. 2019

Applied Sciences

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The mechanical behavior of nanocomposites consisting of highly ordered nanoporous nickel (HONN) and its carbon nanotube (CNT)-reinforced composites (CNHONNs) subjected to a high temperature of 900 K is investigated via molecular dynamics (MD) simulations. The study indicates that, out-of-plane mechanical properties of the HONNs are generally superior to its in-plane mechanical properties. Whereas the CNT shows a significant strengthening effect on the out-of-plane mechanical properties of the CNHONN composites. Compared to pure HONNs, through the addition of CNTs from 1.28 wt‰ to 5.22 wt‰, the weight of the composite can be reduced by 5.83‰ to 2.33% while the tensile modulus, tensile strength, compressive modulus and compressive strength can be increased by 2.2% to 8.8%, 1% to 5.1%, 3.6% to 10.2% and 4.9% to 10.7%, respectively. The energy absorption capacity can also be improved due to the existence of CNTs. Furthermore, the MD simulations provide further insights into the deformation mechanism at the atomic scale, including fracture in tension, pore collapse in compression and local changes in lattice structures due to stacking faults.

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“…Jing et al [28] investigated the mechanical properties of a silicon nanofilm covered with a defective grapheme by using MD simulation. Song and Zha [29] studied the mechanical behaviours of Ni-coated single-walled CNTs and their embedded aluminium matrix composites and found that the interfacial bonding of SWCNT/Al composite can be drastically increased by addition of Ni coating to provide an effective channel for load transfer between the nanotube and Al matrix. Recently, Wu et al [30] studied the mechanical properties of nanocomposite of CNT encapsulating a Si 16 -fullerene-linked nanowires (Si 16 NW) and found that filling Si 16 NW into (13, 0) CNT does not enhance the axial tensile strength and elastic modulus of the host CNT.…”

Section: Introductionmentioning

confidence: 99%

Atomistic simulations of interfacial mechanical characteristics of carbon nanotube/silicon nanocomposites

Xiong

Tian

2014

Molecular Simulation

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The interfacial mechanical properties of carbon nanotube (CNT)-reinforced silicon nanocomposites are investigated by using molecular dynamics simulation method. The hybrid potential that includes Tersoff_2 potential for SiZSi in the silicon matrix, AIREBO potential for CZC in the CNTs and the Lennard-Jones (LJ) potential for SiZC in the interface is used in the nanocomposite system. The effects of such parameters as the CNT chirality, the CNT diameter and the CNT embedded length, the defects (Vacancy defects, Stone -Wales defects), the size of model, the temperature, the bonding strength and the cut-off distance of the interfacial LJ potential of nanocomposites on the pull force and the average interfacial shear strength (ISS) are investigated and discussed. The results show that the toughness and the maximum tensile strength have been increased significantly by adding the CNTs into the Si matrix. Also by increasing the LJ bonding strength and the cut-off distance of the LJ potential, the pull force and the ISS are increased significantly. The CNT chirality, the CNT diameter and the CNT embedded length have a great influence on the pull force and the ISS, while the effects of temperature, the defects and the size of model are very slight.

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Influence of nickel coating on the interfacial bonding characteristics of carbon nanotube–aluminum composites

Cited by 46 publications

References 31 publications

Atomistic behavior of nanoporous carbon nanotube-aluminum composite under compressive loading

Atomistic behavior of nanoporous carbon nanotube-aluminum composite under compressive loading

Study on Lightweight and Strengthening Effect of Carbon Nanotube in Highly Ordered Nanoporous Nickel: A Molecular Dynamics Study

Atomistic simulations of interfacial mechanical characteristics of carbon nanotube/silicon nanocomposites

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