Skip to main content

Ramathasan Thevamaran's blog

Dynamic creation and evolution of gradient-nano-grained structures in single-crystal metallic microcubes

Submitted by Ramathasan The… on
research
gradient-nano-grained metals
high velocity impact
recrystallization
extreme events
Severe Plastic Deformation

In an article published today in Science, we have demonstrated the creation of an extreme gradient-nano-grained (GNG) structure in single-crystal microcubes through high-velocity impact. We use the defect-free single-crystal silver microcubes, synthesized using a seed-growth process, as the model system, and fire them at supersonic velocities onto a rigid target to create the GNG structure.

A few experimental studies on the dynamic behavior of foam-like aligned carbon nanotubes

Submitted by Ramathasan The… on
research
hierarchical materials
carbon nanotubes
multiscale behavior
Energy absorption
impact
dynamic behavior

I'm posting a few experimental studies we have conducted on the dynamic behavior of hierarchical fibrous materials, using vertically aligned carbon nanotubes as a model material. I hope these will be useful to those who are interested in buckle-instabilities, multiscale behavior, and energy absorption mechanisms.

An overview:

Subscribe to Ramathasan Thevamaran's blog