Severe plastic deformation (SPD) is effective in producing bulk ultrafine-grained and
nanostructured materials with large densities of lattice defects. This field, also known as …

Ultrafine-grained and heterostructured materials are currently of high interest due to their
superior mechanical and functional properties. Severe plastic deformation (SPD) is one of …

Severe plastic deformation (SPD) has been widely studied in order to enhance the strength
and ductility of metallic materials. Among various SPD processing techniques, high-pressure …

Silicon, germanium and their alloys are classical semiconductors that play an important role
in fundamental sciences and are the basis for modern microelectronics, optoelectronics …

We report on electric, thermal, and optical properties of Si subjected to severe plastic
deformation. Single-crystalline Si wafers were processed by high-pressure torsion (HPT) …

We report on high-pressure torsion (HPT) processing of Si and related semiconducting
materials, and discuss their phase transformations and electrical, thermal, and optical …

Abstract Si 0.5 Ge 0.5 crystals were subjected to severe plastic deformation using high-
pressure torsion (HPT). A metastable body-centered-cubic phase having a bc8 structure was …

We present a combined experimental and numerical investigation of phonon transport in
multiphase nanostructured silicon. The sample was synthesized by high-pressure torsion …

Abstract Single-crystal Ge (100) disks were deformed by high-pressure torsion (HPT). The
sample after HPT processed at a nominal pressure of 6 GPa without anvil rotation (N= 0) …

In situ observation of a phase transformation during annealing of Si containing diamond-
cubic (dc) and metastable phases has been performed using synchrotron X-ray diffraction …