Phase transitions in crystalline materials

by **Algerien1970** Sat 13 Jun - 18:46

Jun Li

Department of Mechanical Science and Engineering

University of Illinois Urbana Champaign

Abstract

We reviewed structural phase transitions in crystalline materials, especially

recent simulations and experiments on the shock-induced transitions in iron. They

both confirmed a phase transition wave in the picosecond to nanosecond time scale,

inferred previously from wave profile analyses. The nonequilibrium molecular

dynamics simulation suggests modification of pair potentials from

temperature-induced to shock-induced transitions. The x-ray diffraction

measurements are consistent with a compression and shuffle mechanism and in good

agreement with simulation results.

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