The Effect of Stress Transfer Within Double‐Walled Carbon Nanotubes Upon Their Ability to Reinforce Composites

Cui, Shuang; Kinloch, Ian A.; Young, Robert J.; Noé, Laure; Monthioux, Marc

doi:10.1002/adma.200803683

Cited by 72 publications

(73 citation statements)

References 25 publications

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“…Huang et al [68] reported enhanced ductile behaviors in DWNTs and TWNTs submitted to axial tensions at temperatures above 2000 • C. They explain the super-elongation observed in the tubular structure as being essentially related to creep deformations of the CNTs structures at high temperatures. Windle's group confirms the same mechanical shielding of the inner tubes when multi-walled structures are submitted to strain/stress [69][70][71]. Recently, Alencar et al [72] observed the same pressure screening effects for the innermost tubes in TWNT systems.…”

Section: Double-and Triple-walled Carbon Nanotubesmentioning

confidence: 81%

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Fujisawa

Kim

et al. 2016

Applied Sciences

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Double-and triple-walled carbon nanotubes (DWNTs and TWNTs) consist of coaxially-nested two and three single-walled carbon nanotubes (SWNTs). They act as the geometrical bridge between SWNTs and multi-walled carbon nanotubes (MWNTs), providing an ideal model for studying the coupling interactions between different shells in MWNTs. Within this context, this article comprehensively reviews various synthetic routes of DWNTs' and TWNTs' production, such as arc discharge, catalytic chemical vapor deposition and thermal annealing of pea pods (i.e., SWNTs encapsulating fullerenes). Their structural features, as well as promising applications and future perspectives are also discussed.

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Section: Double-and Triple-walled Carbon Nanotubesmentioning

confidence: 81%

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Fujisawa

Kim

et al. 2016

Applied Sciences

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“…The value of  interwall was stated in earlier reports of the literature [40][41][42]. Finally,  interface is assumed to 20 MPa, as described previously [39].…”

Section: Estimation Of Multiple Fracture Of Cnt Under Tensile Loadingmentioning

confidence: 99%

Nanoscopic observations for evaluating the failure process of aligned multi-walled carbon nanotube/epoxy composites

Tsuda

Ogasawara

Moon

et al. 2013

Composites Science and Technology

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This study examined the nanoscopic damage progression of aligned multi-walled carbon nanotubes (CNT) / epoxy composites under tensile loading using transmission electron microscopy (TEM). Aligned CNT/epoxy composite films (30 micro meter thickness) were processed using a forestdrawn aligned CNT sheet and hot-melt prepreg method. Four film specimens, respectively subjected to tensile stress of 0 MPa, 45 MPa, 95 MPa and 110 MPa, were prepared. After tensile loading, each specimen was machined until the thickness became about 100 nm using a focused ion beam milling machine (FIB) for TEM observations. Damage of three kinds, i.e. CNT break derived from the disordered CNT structures around metallic catalyst, sword-in-sheath type CNT break, and several patterns of interfacial debonding, was observed clearly. The broken CNTs and interfacial debonding per unit area were counted from TEM photographs. Results show that broken CNTs and interface debonding increased considerably at 95-110 MPa, which suggests multiple fracture of CNT under tensile loading. The CNT length at the failure stress (110 MPa) was approximately 45 μm. Estimated values from the strength of CNTs resemble those from macroscopic stress-strain behavior.Nanoscopic observations for evaluating the failure process of aligned multi-walled carbon nanotube / epoxy composites AbstractThis study examined the nanoscopic damage progression of aligned multi-walled carbon nanotubes (CNT) / epoxy composites under tensile loading using transmission electron microscopy (TEM). Aligned CNT/epoxy composite films (30 m thickness) were processed using a

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“…As a result, the potential of SWCNT for use in hierarchical composites is largely unknown. Some studies, however, have shown that SWCNT offer superior performance due to their smaller diameter (or higher surface areas), higher aspect ratios, more efficient load transfer and better mechanical properties due to higher crystallinity [11,12]. On the other hand, SWCNT are known to pose challenges in terms of dispersion, requiring the development of suitable functionalization techniques which address these issues while not damaging the SWNCT molecular structure.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of mechanical performance of epoxy/carbon fiber laminate composites using single-walled carbon nanotubes

Ashrafi

Guan

Mirjalili

et al. 2011

Composites Science and Technology

212

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Carbon nanotubes (CNT) in their various forms have great potential for use in the development of multifunctional multiscale laminated composites due to their unique geometry and properties. Recent advancements in the development of CNT hierarchical composites have mostly focused on multi-walled carbon nanotubes (MWCNT). In this work, single-walled carbon nanotubes (SWCNT) were used to develop nano-modified carbon fiber/epoxy laminates. A functionalization technique based on reduced SWCNT was employed to improve dispersion and epoxy resin-nanotube interaction. A commercial prepregging unit was then used to impregnate unidirectional carbon fiber tape with a modified epoxy system containing 0.1 wt% functionalized SWCNT. Impact and compression-after-impact (CAI) tests, Mode I interlaminar fracture toughness and Mode II interlaminar fracture toughness tests were performed on laminates with and without SWCNT. It was found that incorporation of 0.1 wt% of SWCNT resulted in a 5% reduction of the area of impact damage, a 3.5% increase in CAI strength, a 13% increase in Mode I fracture toughness, and 28% increase in Mode II interlaminar fracture toughness. A comparison between the results of this work and literature results on MWCNT-modified laminated composites suggests that SWCNT, at similar loadings, are more effective in enhancing the mechanical performance of traditional laminated composites.Crown

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The Effect of Stress Transfer Within Double‐Walled Carbon Nanotubes Upon Their Ability to Reinforce Composites

Cited by 72 publications

References 25 publications

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Nanoscopic observations for evaluating the failure process of aligned multi-walled carbon nanotube/epoxy composites

Enhancement of mechanical performance of epoxy/carbon fiber laminate composites using single-walled carbon nanotubes

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