Structural Dynamics of Materials under Shock Compression Investigated with Synchrotron Radiation
AbstractCharacterizing material dynamics in non-equilibrium states is a current challenge in material and physical sciences. Combining laser and X-ray pulse sources enables the material dynamics in non-equilibrium conditions to be directly monitored. In this article, we review our nanosecond time-resolved X-ray diffraction studies with 100-ps X-ray pulses from synchrotron radiation concerning the dynamics of structural phase transitions in non-equilibrium high-pressure conditions induced by laser shock compression. The time evolution of structural deformation of single crystals, polycrystals, and glass materials was investigated. In a single crystal of cadmium sulfide, the expected phase transition was not induced within 10 ns at a peak pressure of 3.92 GPa, and an over-compressed structure was formed. In a polycrystalline sample of Y2O3 stabilized tetragonal zirconia, reversible phase transitions between tetragonal and monoclinic phases occur within 20 ns under laser-induced compression and release processes at a peak pressure of 9.8 GPa. In polycrystalline bismuth, a sudden transition from Bi-I to Bi-V phase occurs within approximately 5 ns at 11 GPa, and sequential V–III–II–I phase transitions occur within 30 ns during the pressure release process. In fused silica shocked at 3.5 GPa, an intermediate-range structural change in the nonlinear elastic region was observed. View Full-Text
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Ichiyanagi, K.; Nakamura, K.G. Structural Dynamics of Materials under Shock Compression Investigated with Synchrotron Radiation. Metals 2016, 6, 17.
Ichiyanagi K, Nakamura KG. Structural Dynamics of Materials under Shock Compression Investigated with Synchrotron Radiation. Metals. 2016; 6(1):17.Chicago/Turabian Style
Ichiyanagi, Kouhei; Nakamura, Kazutaka G. 2016. "Structural Dynamics of Materials under Shock Compression Investigated with Synchrotron Radiation." Metals 6, no. 1: 17.
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