High-Pressure Nonequilibrium Dynamics on Second-to-Microsecond Time Scales: Application of Time-Resolved X-ray Diffraction and Dynamic Compression in Ice

2021 ◽  
pp. 8024-8038
Author(s):  
Chuanlong Lin ◽  
John S. Tse
Keyword(s):  
High Pressure ◽  
Time Scales ◽  
Dynamic Compression ◽  
Nonequilibrium Dynamics ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

Kinetics of high-pressure mineral phase transformations using in situ time-resolved X-ray diffraction in the Paris-Edinburgh cell: a practical guide for data acquisition and treatment

2008 ◽  
Vol 72 (2) ◽  
pp. 683-695 ◽  
Author(s):  
J. P. Perrillat
Keyword(s):  
High Pressure ◽  
Phase Transformations ◽  
Kinetic Studies ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Practical Guide ◽  
Set Up ◽  
Isothermal Kinetic

AbstractSynchrotron X-ray diffraction (XRD) is a powerful technique to study in situ and in real-time the structural and kinetic processes of pressure-induced phase transformations. This paper presents the experimental set-up developed at beamline ID27 of the ESRF to perform time-resolved angle dispersive XRD in the Paris-Edinburgh cell. It provides a practical guide for the acquisition of isobaric-isothermal kinetic data and the construction of transformation-time plots. The interpretation of experimental data in terms of reaction mechanisms and transformation rates is supported by an overview of the kinetic theory of solid-solid transformations, with each step of data processing illustrated by experimental results of relevance to the geosciences. Reaction kinetics may be affected by several factors such as the sample microstructure, impurities or differential stress. Further high-pressure kinetic studies should investigate the influence of such processes, in order to acquire kinetic information more akin to natural or technological processes.

scholarly journals Developments in time-resolved high pressure x-ray diffraction using rapid compression and decompression

2015 ◽  
Vol 86 (7) ◽  
pp. 072208 ◽  
Author(s):  
Jesse S. Smith ◽  
Stanislav V. Sinogeikin ◽  
Chuanlong Lin ◽  
Eric Rod ◽  
Ligang Bai ◽  
...  
Keyword(s):  
High Pressure ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Rapid Compression

Time-resolved X-ray diffraction study of C60 at high pressure and temperature

2001 ◽  
Vol 287 (1-2) ◽  
pp. 143-151 ◽  
Author(s):  
Takashi Horikawa ◽  
Kaichi Suito ◽  
Michihiro Kobayashi ◽  
Akifumi Onodera
Keyword(s):  
High Pressure ◽  
Diffraction Study ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
High Pressure And Temperature ◽  
X Ray

Development of shock-dynamics study with synchrotron-based time-resolved X-ray diffraction using an Nd:glass laser system

2020 ◽  
Vol 27 (2) ◽  
pp. 371-377 ◽  
Author(s):  
Sota Takagi ◽  
Kouhei Ichiyanagi ◽  
Atsushi Kyono ◽  
Shunsuke Nozawa ◽  
Nobuaki Kawai ◽  
...  
Keyword(s):  
Strain Rate ◽  
Shock Compression ◽  
Dynamic Compression ◽  
Laser System ◽  
Target Position ◽  
Experimental System ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Nd:Glass Laser

The combination of high-power laser and synchrotron X-ray pulses allows us to observe material responses under shock compression and release states at the crystal structure on a nanosecond time scale. A higher-power Nd:glass laser system for laser shock experiments was installed as a shock driving source at the NW14A beamline of PF-AR, KEK, Japan. It had a maximum pulse energy of 16 J, a pulse duration of 12 ns and a flat-top intensity profile on the target position. The shock-induced deformation dynamics of polycrystalline aluminium was investigated using synchrotron-based time-resolved X-ray diffraction (XRD) under laser-induced shock. The shock pressure reached up to about 17 GPa with a strain rate of at least 4.6 × 107 s–1 and remained there for nanoseconds. The plastic deformation caused by the shock-wave loading led to crystallite fragmentation. The preferred orientation of the polycrystalline aluminium remained essentially unchanged during the shock compression and release processes in this strain rate. The newly established time-resolved XRD experimental system can provide useful information for understanding the complex dynamic compression and release behaviors.

Melting of lead under high pressure studied using second-scale time-resolved x-ray diffraction

2007 ◽  
Vol 76 (14) ◽  
Author(s):  
Agnès Dewaele ◽  
Mohamed Mezouar ◽  
Nicolas Guignot ◽  
Paul Loubeyre
Keyword(s):  
High Pressure ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray

scholarly journals Time-spliced X-ray diffraction imaging of magnetism dynamics in a NdNiO3 thin film

2018 ◽  
Vol 115 (9) ◽  
pp. 2044-2048 ◽  
Author(s):  
Kenneth R. Beyerlein
Keyword(s):  
Complex Oxide ◽  
Nonequilibrium Dynamics ◽  
Antiferromagnetic Order ◽  
X Ray Diffraction ◽  
Vibrationally Excited ◽  
Optical Pump ◽  
Time Resolved ◽  
X Ray ◽  
Excited Complex ◽  
Diffraction Imaging

Diffraction imaging of nonequilibrium dynamics at atomic resolution is becoming possible with X-ray free-electron lasers. However, there are unresolved problems with applying this method to objects that are confined in only one dimension. Here I show that reliable one-dimensional coherent diffraction imaging is possible by splicing together images recovered from different time delays in an optical pump X-ray probe experiment. The time and space evolution of antiferromagnetic order in a vibrationally excited complex oxide heterostructure is recovered from time-resolved measurements of a resonant soft X-ray diffraction peak. Midinfrared excitation of the substrate is shown to lead to a demagnetization front that propagates at a velocity exceeding the speed of sound, a critical observation for the understanding of driven phase transitions in complex condensed matter.

scholarly journals Laser-Based Dynamic Compression of Solids to Ultrahigh Pressures

2014 ◽  
Vol 70 (a1) ◽  
pp. C396-C396
Author(s):  
Thomas Duffy ◽  
Jue Wang ◽  
Federica Coppari ◽  
Raymond Smith ◽  
Jon Eggert ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Magnesium Oxide ◽  
Extrasolar Planets ◽  
Dynamic Compression ◽  
High Pressure Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pressure Phase ◽  
B2 Structure

Laser-based dynamic compression provides new opportunities to study the structures and properties of materials to ultrahigh pressure conditions. In this technique, high-powered laser beams are used to ablate a sample surface and by reaction a compression wave is generated and propagate through the sample. By controlling the shape and duration of the laser pulse, either shock or ramp (shockless) compression can be produced. Diagnostics include velocity interferometry (from which the stress-density response of the material can be determined) and x-ray diffraction from which structural information is obtained. Magnesium oxide is a fundamental ionic solid which has been extensively examined at high pressures. Theoretical studies predict a change in MgO from a rocksalt (B1) crystal structure to a cesium chloride (B2) structure at pressures of about 400–600 GPa but diamond anvil cell experiments have not been able to reach these pressures. Here we present dynamic X-ray diffraction measurements of ramp-compressed magnesium oxide. We show that a solid–solid phase transition, consistent with a transformation to the B2 structure occurs near 600 GPa. On further compression, this structure remains stable to 900 GPa. Our results provide an experimental benchmark to the equations of state and transition pressure of magnesium oxide, and may help constrain interior properties of super-Earth extrasolar planets. We have also examined the high-pressure behavior of molybdenum under both shock and ramp loading. The melting curves and high-pressure phase diagrams of transition metals have been controversial, and Mo is an excellent test case for resolving these discrepancies. We have conducted shock compression experiments on Mo with an X-ray diffraction diagnostic to address previous claims of high-pressure phase transitions and to determine the location of the Hugoniot melting point. We have also carried out ramp compression experiments to test predictions of phase transitions in Mo at ultrahigh pressures and low temperatures.

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