Hi all,
i'm interested to silicon plastic deformations and applications of this
technology.
See for example the paper: "Hemisphere-shaped Si crystal wafers obtained
by plastic deformation and preparation of their solar cells.[J. Electron.
Mater.,34,(2005),1047-1052] K. Nakajima, K. Fujiwara, W. Pan".

Which could be pratical applications of silicon plastic deformations? I
presume that it could be possible to realize x-ray focusing and lenses
devices. Are there other possible applications ?

Many thanks,
Andrea