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A Method to Evaluate the Tensile Strength and Stress–Strain Relationship of Carbon Nanofibers, Carbon Nanotubes, and C‐Chains
Author(s) -
MárquezLucero Alfredo,
Gomez Jorge A.,
Caudillo Román,
MikiYoshida Mario,
JoséYacaman Miguel
Publication year - 2005
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.200400115
Subject(s) - necking , materials science , carbon nanotube , ultimate tensile strength , carbon nanofiber , composite material , mechanical properties of carbon nanotubes , carbon fibers , amorphous carbon , transmission electron microscopy , nanofiber , stress (linguistics) , nanotechnology , amorphous solid , composite number , chemistry , crystallography , nanotube , linguistics , philosophy
A method is introduced to assess the tensile strength of carbon nanofibers, carbon nanotubes (CNTs), and linear chains of carbon atoms (C‐chains) obtained from thin amorphous carbon films by electron irradiation. Transmission electron microscopy images show that the nanofibers undergo a radiation‐induced necking process, characterized by CNT formation and often followed by the formation of a C‐chain. Simulations of the necking process are carried out to determine the tensile stress supported by the nanofiber and CNT neck.