Mechanical behavior of single-layer graphdiyne via supersonic micro-projectile impact

Xiao, Kailu; Yin, Qinye; Wu, Xianqian; Huang, Chenguang

doi:10.1016/j.nanoms.2021.12.002

Cited by 12 publications

(2 citation statements)

References 56 publications

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“…To illuminate the energy absorption mechanisms of the IMCNT films, the morphological evolution of the CNT fibrils and the energy dissipation channels during impact are depicted in Figure 5 according to the post‐mortem observation. The central region of the IMCNT film is subjected to compression and the periphery is under shear at the beginning of impact, followed by the tension during the propagation of the longitude wave with speed C L , [ 26 ] resulting in a conical deformation (Figure 5a‐i,ii). Some CNT fibrils beneath the projectile experience dynamic stretching under high strain rates accompanied by the breaking of some CNT bundles, leading to the formation of the perforation hole eventually (Figure 5a‐iii).…”

Section: Resultsmentioning

confidence: 99%

Micron‐Thick Interlocked Carbon Nanotube Films with Excellent Impact Resistance via Micro‐Ballistic Impact

Xiao

Zhang

et al. 2023

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The highest specific energy absorption (SEA) of interlocked micron‐thickness carbon nanotube (IMCNT) films subjected to micro‐ballistic impact is reported in this paper. The SEA of the IMCNT films ranges from 0.8 to 1.6 MJ kg−1, the greatest value for micron‐thickness films to date. The multiple deformation‐induced dissipation channels at the nanoscale involving disorder‐to‐order transition, frictional sliding, and entanglement of CNT fibrils contribute to the ultra‐high SEA of the IMCNT. Furthermore, an anomalous thickness dependency of the SEA is observed, that is, the SEA increases with increasing thickness, which should be ascribed to the exponential growth in nano‐interface that further boosts the energy dissipation efficiency as the film thickness increases. The results indicate that the developed IMCNT overcomes the size‐dependent impact resistance of traditional materials and demonstrates great potential as a bulletproof material for high‐performance flexible armor.

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Section: Resultsmentioning

confidence: 99%

Micron‐Thick Interlocked Carbon Nanotube Films with Excellent Impact Resistance via Micro‐Ballistic Impact

Xiao

Zhang

et al. 2023

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“…113 To synthesize a layered material with excellent performance, it is necessary to control the thickness, chemical composition and stacking order of the coating through an efficient chemical process. 114 The volume change of SiO x has been reduced twice as much as that of Si, but the volume effect of 160% is still not ideal, which cannot meet the needs of industrial production. It is found that the layered structure can adapt to the volume change during cycling and buffer the internal stress by reducing the thickness of the film.…”

Section: Structural Design Of Siox/c Compositesmentioning

confidence: 99%

Rational design of SiO_x based anode materials for next generation lithium-ion batteries

Yang,

Liu,

Jiang

et al. 2024

Mater. Adv.

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Low‐Density Multilayer Graphdiyne Film with Excellent Energy Dissipation Capability under Micro‐Ballistic Impact

Xiao

Jin

Liu

et al. 2023

Adv Funct Materials

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Dynamical performance of multilayer graphdiyne (MLGDY) with ultra‐low density and flexible features is investigated using laser‐induced micro‐projectile impact testing (LIPIT) and molecular dynamics (MD) simulations. The results reveal that the MLGDY exhibits excellent dynamic energy dissipation ability mainly due to the excellent in‐plane wave velocity resulting from the diacetylene linkages between benzene rings. In addition, the unique multiple crack tips and their propagation further promote the energy dissipation capability. The energy dissipation capability of the MLGDY is found to reduce with increasing thickness due to compression‐shear induced failure of several upper layers of relatively thick MLGDY, which hinders delocalized energy dissipation ability. Moreover, the impact resistance force of the MLGDY increases almost linearly with increasing impact velocity, demonstrating the applicability of the traditional compressive resistance theory of laminates for MLGDY. Based on the experimental observation and the simulation results, two feasible strategies, i.e., combining with high‐strength multi‐layer graphene and rotated graphdiyne (GDY) interlayer to avoid stacking of sp‐hybridized carbon atoms, are proposed to further improve the impact resistance of the MLGDY. The study provides direct proof of excellent impact resistance of the versatile MLGDY and proposes feasible fabrication strategies to further improve the anti‐ballistic performance in future.

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Mechanical behavior of single-layer graphdiyne via supersonic micro-projectile impact

Cited by 12 publications

References 56 publications

Micron‐Thick Interlocked Carbon Nanotube Films with Excellent Impact Resistance via Micro‐Ballistic Impact

Micron‐Thick Interlocked Carbon Nanotube Films with Excellent Impact Resistance via Micro‐Ballistic Impact

Rational design of SiO_x based anode materials for next generation lithium-ion batteries

Low‐Density Multilayer Graphdiyne Film with Excellent Energy Dissipation Capability under Micro‐Ballistic Impact

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Mechanical behavior of single-layer graphdiyne via supersonic micro-projectile impact

Cited by 12 publications

References 56 publications

Micron‐Thick Interlocked Carbon Nanotube Films with Excellent Impact Resistance via Micro‐Ballistic Impact

Micron‐Thick Interlocked Carbon Nanotube Films with Excellent Impact Resistance via Micro‐Ballistic Impact

Rational design of SiOx based anode materials for next generation lithium-ion batteries

Low‐Density Multilayer Graphdiyne Film with Excellent Energy Dissipation Capability under Micro‐Ballistic Impact

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Product

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Rational design of SiO_x based anode materials for next generation lithium-ion batteries