A method to evaluate the tensile strength and stress-strain relationship of carbon nanofibers, carbon nanotubes, and C-chains.
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.
Márquez-Lucero
Alfredo
A
Centro de Investigación en Materiales Avanzados, Miguel de Cervantes #120, Complejo Industrial Chihuahua, 31109 Chihuahua, Mexico.
Gomez
Jorge A
JA
Caudillo
Román
R
Miki-Yoshida
Mario
M
José-Yacaman
Miguel
M
D002244:Carbon / Q000737:chemistry*; D003460:Crystallization; D003461:Crystallography; D004563:Electrochemistry; D004583:Electrons; D008422:Materials Testing; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry*; D013499:Surface Properties; D013718:Tensile Strength
D037742:Nanotubes, Carbon; D002244:Carbon