Phase transitions in crystalline materials
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Phase transitions in crystalline materials
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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