On Young’s modulus of multi-walled carbon nanotubes

Bulletin of Materials Science

关键词: Multi-walled carbon nanotubes;    CNT/Al nanocomposites;    Young’s modulus;    TEM.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Carbon nanotubes (CNTs) were discovered by Iijima in 1991 as the fourth form of carbon. Carbon nanotubes are the ultimate carbon fibres because of their high Young’s modulus of ≈ 1 TPa which is very useful for load transfer in nanocomposites. In the present work, CNT/Al nanocomposites were fabricated by the powder metallurgy technique and after extrusion of the nanocomposites bright field transmission electron microscopic (TEM) studies were carried out. From the TEM images so obtained, a novel method of ascertaining the Young’s modulus of multi-walled carbon nanotubes is worked out in the present paper which turns out to be 0.9 TPa which is consistent with the experimental results.

【 授权许可】

CC BY