NDLI: Sharp burnout failure observed in high current-carrying double-walled carbon nanotube fibers.

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Sharp burnout failure observed in high current-carrying double-walled carbon nanotube fibers.

Content Provider	Semantic Scholar
Author	Li, Song Tóth, G. Wei, Jinquan Liu, Zheng Gao, Wei Ci, Lijie Vajtai, Robert Endo, Morinobu Ajayan, Pulickel M.
Copyright Year	2012
Abstract	We report on the current-carrying capability and the high-current-induced thermal burnout failure modes of 5-20 μm diameter double-walled carbon nanotube (DWNT) fibers made by an improved dry-spinning method. It is found that the electrical conductivity and maximum current-carrying capability for these DWNT fibers can reach up to 5.9 × 10(5) S m(-1) and over 1 × 10(5) A cm(-2) in air. In comparison, we observed that standard carbon fiber tended to be oxidized and burnt out into cheese-like morphology when the maximum current was reached, while DWNT fiber showed a much slower breakdown behavior due to the gradual burnout in individual nanotubes. The electron microscopy observations further confirmed that the failure process of DWNT fibers occurs at localized positions, and while the individual nanotubes burn they also get aligned due to local high temperature and electrostatic field. In addition a finite element model was constructed to gain better understanding of the failure behavior of DWNT fibers.
Starting Page	015703
Ending Page	015703
Page Count	1
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.ntu.edu.sg/home/z.liu/download/36.pdf
PubMed reference number	22156276v1
Alternate Webpage(s)	https://doi.org/10.1088/0957-4484/23/1/015703
DOI	10.1088/0957-4484/23/1/015703
Journal	Nanotechnology
Volume Number	23
Issue Number	1
Language	English
Access Restriction	Open
Subject Keyword	Alignment Behavior Burn injury Carbon Monoxide Poisoning Carrying Catabolism DNA Breaks, Double-Stranded Diameter (qualifier value) Disintegration (morphologic abnormality) Double-Walled Nanotube Electric Conductivity Electric Wiring Fever Heart failure Nanotubes Nanotubes, Carbon Puromycin Aminonucleoside Tissue fiber
Content Type	Text
Resource Type	Article

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