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Issue 76, 2016, Issue in Progress

Spotlight on ultrasonic fracture behaviour of nanowires: their size-dependent effect and prospect for controllable functional modification

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Abstract

Ultrasonic deformation and even fracture of one-dimensional nanomaterials usually occur under sonication, which is likely to have a significant effect on their physical and chemical properties. However, this process and the mechanism underlain are still unknown and yet to be found out. Herein, we establish a ‘bubble-jet impact’ model to study the specific behaviour of fracture evolution of nanowires in sonication processing. By recording the plastic deformation and absorbency of certain sonicated nanowires, e.g., Ag and Cu, a strong size-dependent breakage induced by the bubble-jet is well validated, which shows that relatively long nanowires tend to fracture by bending while short or medium-length nanowires, as fractured remainders of long ones, have the inclination to be tensile broken. The transition point between the two types of fractures has also been discovered. Our results not only provide guidelines for ultrasonic dispersion, but also pioneer a possible way for controllable functional modification of one-dimensional nanomaterials.

Graphical abstract: Spotlight on ultrasonic fracture behaviour of nanowires: their size-dependent effect and prospect for controllable functional modification

Supplementary files

Article information


Submitted
05 Jun 2016
Accepted
24 Jul 2016
First published
29 Jul 2016

RSC Adv., 2016,6, 72080-72085
Article type
Paper

Spotlight on ultrasonic fracture behaviour of nanowires: their size-dependent effect and prospect for controllable functional modification

H. Dai, T. Y. Wang and M. C. Li, RSC Adv., 2016, 6, 72080 DOI: 10.1039/C6RA14559K

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