Complex structural dynamics of bismuth under laser-driven compression

Hu, Jianbo; Ichiyanagi, Kouhei; Doki, Tomoaki; Goto, Atsuko; Eda, Tatsuji; Norimatsu, Katsura; Harada, Shinichi; Horiuchi, Dai; Kabasawa, Yuki; Hayashi, Shinji; Uozumi, Shin Ichi; Kawai, Nobuaki; Nozawa, Shiro; Sato, Tokushi; Adachi, Shin‐ichi; Nakamura, Kazutaka G.

doi:10.1063/1.4825276

Cited by 23 publications

(19 citation statements)

References 36 publications

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“…To avoid this we have chosen to study melting in Bi on shock release from the high-pressure Bi-V phase. Such a study also allows a direct comparison with the recent diffraction study of Bi by Hu et al, which reported several solid-solid transitions on release on nanosecond timescales [12]. Here we present femtosecond X-ray diffraction measurements of Bi that provide definitive evidence of liquid diffraction, and which show that on release Bi-V melts within 3 ns at P-T conditions that are in excellent agreement with the equilibrium melt curve [14].…”

supporting

confidence: 80%

“…However, by directly determining all of the phases present in our samples using 80 fs X-ray exposures, our data show unequivocally that Bi melts within 3 ns on release from Bi-V. We note that a recent diffraction study of the solid-solid phase transitions in Bi on shock release from lower pressures [12], using 100 ps X-ray exposures, found three successive phase transitions -Bi-V → Bi-III → Bi-II → Bi-I -to occur within 30 ns, with individual transition times similar to the melting time reported here. Ultrafast X-ray diffraction is thus an excellent way of unambiguously determining both the nature and timescale of shock-induced phase transitions on the nanosecond timescales of laser compression experiments.…”

Section: D Diffraction Images Were Recorded On Cspad De-mentioning

confidence: 50%

“…This is longer than the timescale of many laserdriven compression experiments, perhaps explaining the observation of superheated Bi-I, rather than liquid-Bi, in the laser-compression study of Smith et al [7]. These melting timescales are also very much longer than those of a few nanoseconds in which shock-induced solid-solid phase transitions are known to take place in Fe [5] and Bi [12], as determined by diffraction.…”

mentioning

confidence: 96%

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Direct Observation of Melting in Shock-Compressed Bismuth With Femtosecond X-ray Diffraction

et al. 2015

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The melting of bismuth in response to shock compression has been studied using in situ femtosecond x-ray diffraction at an x-ray free electron laser. Both solid-solid and solid-liquid phase transitions are documented using changes in discrete diffraction peaks and the emergence of broad, liquid scattering upon release from shock pressures up to 14 GPa. The transformation from the solid state to the liquid is found to occur in less than 3 ns, very much faster than previously believed. These results are the first quantitative measurements of a liquid material obtained on shock release using x-ray diffraction, and provide an upper limit for the time scale of melting of bismuth under shock loading.

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supporting

confidence: 80%

Section: D Diffraction Images Were Recorded On Cspad De-mentioning

confidence: 50%

mentioning

confidence: 96%

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Direct Observation of Melting in Shock-Compressed Bismuth With Femtosecond X-ray Diffraction

et al. 2015

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“…Luo et al, 2012;Hu et al, 2013;Chen et al, 2014;Eakins & Chapman, 2014;Rack et al, 2014;Kantor et al, 2014;Kareh et al, 2014;Karagadde et al, 2015;Jensen et al, 2015; and references therein) have began to exploit synchrotron radiation to provide some of the first observations of important damage mechanisms at the mesoscale. Radiographic studies report observations of the early stages of buried pore collapse (Eakins & Chapman, 2014), crack pattern formation and instability growth (Luo et al, 2012;Jensen et al, 2015), while diffraction experiments have identified remarkably complex phase behaviour in bismuth (Hu et al, 2013). 1 However, several authors highlight the challenges associated with bringing dynamic experiments to synchrotron environments, noting trade-offs between signal-to-noise ratio (SNR), time resolution, interframe time and image ghosting (Luo et al, 2012;Eakins & Chapman, 2014).…”

Section: Introductionmentioning

confidence: 99%

Evaluating scintillator performance in time-resolved hard X-ray studies at synchrotron light sources

Rutherford

Chapman

White

et al. 2016

J Synchrotron Radiat

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The short pulse duration, small effective source size and high flux of synchrotron radiation is ideally suited for probing a wide range of transient deformation processes in materials under extreme conditions. In this paper, the challenges of high-resolution time-resolved indirect X-ray detection are reviewed in the context of dynamic synchrotron experiments. In particular, the discussion is targeted at two-dimensional integrating detector methods, such as those focused on dynamic radiography and diffraction experiments. The response of a scintillator to periodic synchrotron X-ray excitation is modelled and validated against experimental data collected at the Diamond Light Source (DLS) and European Synchrotron Radiation Facility (ESRF). An upper bound on the dynamic range accessible in a time-resolved experiment for a given bunch separation is calculated for a range of scintillators. New bunch structures are suggested for DLS and ESRF using the highest-performing commercially available crystal LYSO:Ce, allowing time-resolved experiments with an interframe time of 189 ns and a maximum dynamic range of 98 (6.6 bits).

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“…The plasma confined target consisted of a backup plastic film (25 µm thick), an Al foil (3 µm thick), and the sample. The sample was a 20 µm thick foil of polycrystalline bismuth (99.97% pure) obtained from Goodfellow Cambridge Limited (Huntingdon, UK) [19]. A laser pulse with energy of 1.0 J and pulse width of 8 ns was focused on the target with a spot diameter of 0.48 mm.…”

Section: Phase Transition Dynamics In Polycrystalline Bismuthmentioning

confidence: 99%

Structural Dynamics of Materials under Shock Compression Investigated with Synchrotron Radiation

Ichiyanagi

Nakamura

2016

Metals

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Abstract:Characterizing 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 Y 2 O 3 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.

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Complex structural dynamics of bismuth under laser-driven compression

Cited by 23 publications

References 36 publications

Direct Observation of Melting in Shock-Compressed Bismuth With Femtosecond X-ray Diffraction

Direct Observation of Melting in Shock-Compressed Bismuth With Femtosecond X-ray Diffraction

Evaluating scintillator performance in time-resolved hard X-ray studies at synchrotron light sources

Structural Dynamics of Materials under Shock Compression Investigated with Synchrotron Radiation

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