Measurement of Young’s modulus of carbon nanotubes by nanoprobe manipulation in a transmission electron microscope
2006; American Institute of Physics; Volume: 88; Issue: 15 Linguagem: Inglês
10.1063/1.2195010
ISSN1520-8842
AutoresKazuki ENOMOTO, Shintaro Kitakata, Toshiyuki Yasuhara, Naoto Ohtake, Tôru Kuzumaki, Yoshitaka Mitsuda,
Tópico(s)Force Microscopy Techniques and Applications
ResumoA method for quantifying the nanomechanics of nanomaterials was developed using a nanoprobe manipulator fitted into a transmission electron microscope. Apparent Young’s moduli of various carbon nanotubes (CNTs) were measured using this method. The apparent Young’s modulus of an arc-grown CNT is as large as approximately 3.3TPa, which is close to the theoretical Young’s modulus (5.5TPa) of the single-walled CNT simulated using molecular dynamics. The relationship between the apparent Young’s modulus and the crystallinity of CNTs is demonstrated using the crystallinity parameter ID∕IG derived by Raman spectroscopic analysis. The apparent Young’s modulus is higher for better crystallinity of CNT.
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