Small is worthy

Published: Friday 31 October 1997

Tiny nanotubes (a billionth part of a tube) can be used to make materials with fewer defects compared to their larger counterparts. E W Wong and his colleagues at Harvard University, Cambridge, UK, have explored the strength of nanotubes. They determined mechanical properties of nanorods and carbon nanotubes. It was found that continued bending of the rods led to fracture, whereas the tubes had an unusual elastic property. Though the stiffer tubes ended up being weaker than the rods, the tubes represented uniquely tough, energy-absorbing material that may prove quite useful in future applications.

Subscribe to Weekly Newsletter :

Comments are moderated and will be published only after the site moderator’s approval. Please use a genuine email ID and provide your name. Selected comments may also be used in the ‘Letters’ section of the Down To Earth print edition.