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Enhanced Mechanical Properties of Prestressed Multi‐Walled Carbon Nanotubes
Author(s) -
Xu Zhiping,
Wang Lifeng,
Zheng Quanshui
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200700678
Subject(s) - materials science , carbon nanotube , ultimate tensile strength , composite material , coaxial , shear (geology) , nanotechnology , mechanical engineering , engineering
The benefits of stress : Prestressed multi‐walled carbon nanotubes (PMWNTs; see picture) have smaller interwall spacings than normal multi‐walled nanotubes (MWNTs) and significantly enhanced mechanical properties. Molecular simulations show that a 20% reduction in interwall spacing increases the interwall shear strength by up to four orders of magnitude. The PMWNTs have a tensile strength and stiffness about 20% higher than those of normal MWNTs.