High-pressure structural behaviour of nanocrystalline Ge

HIGH PRESSURE BEHAVIOR OF KCl: STRUCTURAL AND ELECTRONIC PROPERTIES

The high pressure behavior of the structural and electronic properties of KC1 is studied with use of the density functional pseudopotential method within local-density approximation. Atzero pressure, the rocksalt phase is found to be lower in energy than CsCl structure. However, we predict a phase transition into CsCI structure at a pressure of about 1.5 GPa. The calculated ground state pro...

Formation of the ST12 phase in nanocrystalline Ge at ambient pressure

Thermomechanics of nanocrystalline nickel under high pressure-temperature conditions.

We present a comparative study of thermomechanical properties of nano-polycrystalline nickel (nano-Ni) and micrometer-polycrystalline nickel (micron-Ni) by in situ high pressure-temperature (P-T) diffraction experiments. The yield strength of 2.35 GPa for the nano-Ni measured under high-pressure triaxial compression is more than three times that of the micron-Ni value. Contrary to tensile exper...

high pressure behavior of kcl: structural and electronic properties

the high pressure behavior of the structural and electronic properties of kc1 is studied with use of the density functional pseudopotential method within local-density approximation. atzero pressure, the rocksalt phase is found to be lower in energy than cscl structure. however, we predict a phase transition into csci structure at a pressure of about 1.5 gpa. the calculated ground state propert...

Compressive behaviour of nanocrystalline Mg–5Al alloys

Magnesium alloys are attracting increasing research interests due to their low density, high specific strength, good machinability and availability as compared to other structural materials. However, the deformation and failure mechanisms of nanocrystalline (nc) Mg alloys have not been well understood. In this work, the deformation behaviour of nc Mg–5Al alloys was investigated using compressio...