Solidification and crystal growth of highly compressed hydrogen and deuterium: Time-resolved study under ramp compression in dynamic-diamond anvil cell

2013 ◽  
Vol 103 (6) ◽  
pp. 061905 ◽  
Author(s):  
Dane Tomasino ◽  
Choong-Shik Yoo
Keyword(s):  
Crystal Growth ◽  
Diamond Anvil Cell ◽  
Time Resolved ◽  
Diamond Anvil

scholarly journals Bulk modulus of H2O across the ice VII–ice X transition measured by time-resolved x-ray diffraction in dynamic diamond anvil cell experiments

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
A. S. J. Méndez ◽  
F. Trybel ◽  
R. J. Husband ◽  
G. Steinle-Neumann ◽  
H.-P. Liermann ◽  
...  
Keyword(s):  
Bulk Modulus ◽  
Diamond Anvil Cell ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Diamond Anvil

scholarly journals A new internally heated diamond anvil cell system for time-resolved optical and x-ray measurements

2020 ◽  
Vol 91 (8) ◽  
pp. 085114
Author(s):  
Yimin Mijiti ◽  
Marco Perri ◽  
Jean Coquet ◽  
Lucie Nataf ◽  
Marco Minicucci ◽  
...  
Keyword(s):  
Diamond Anvil Cell ◽  
Cell System ◽  
Time Resolved ◽  
X Ray ◽  
Diamond Anvil

Crystal growth by pressure control using a diamond anvil cell

1988 ◽  
Vol 88 (4) ◽  
pp. 535-536 ◽  
Author(s):  
Tsutomu Sawada ◽  
Kenichi Takemura ◽  
Kenji Kitamura ◽  
Shigeyuki Kimura
Keyword(s):  
Crystal Growth ◽  
Diamond Anvil Cell ◽  
Pressure Control ◽  
Diamond Anvil

Raman Studies of Stress-Induced Phase Transformations in Titania Films

1991 ◽  
Vol 230 ◽  
Author(s):  
Gregory J. Exarhos ◽  
Nancy J. Hess
Keyword(s):  
Diamond Anvil Cell ◽  
Phonon Frequency ◽  
Volume Fraction ◽  
Sol Gel ◽  
Stability Diagram ◽  
Film Stress ◽  
Time Resolved ◽  
Phase Stability Diagram ◽  
Diamond Anvil ◽  
Titania Films

AbstractTime-resolved micro-Raman spectroscopy is used to follow the amorphous to crystalline phase transformation in sol-gel deposited titania films induced thermally or through the action of applied hydrostatic pressure in a diamond anvil cell. Time-dependent phonon intensities intrinsic to the growing phase are related to the volume fraction of crystallite present at any time. The sigmoidally generated curves can be modeled in terms of modified Avrami ingrowth kinetics in which diffusion of the amorphous phase to the nucleation center is restricted by the morphology of the evolving phase. Phonon frequency and linewidth measurements during the course of the transformation probe changes in film stress and particle size which are used to understand the mechanistics of the transformation. Raman measurements also are used to derive a phase stability diagram for titania films.

scholarly journals Compression-rate dependence of pressure-induced phase transitions in Bi

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rachel J. Husband ◽  
Earl F. O’Bannon ◽  
Hanns-Peter Liermann ◽  
Magnus J. Lipp ◽  
Alba S. J. Méndez ◽  
...  
Keyword(s):  
Diamond Anvil Cell ◽  
Nucleation And Growth ◽  
Compression Rate ◽  
X Ray Diffraction ◽  
Phase Boundaries ◽  
Time Resolved ◽  
Future Studies ◽  
X Ray ◽  
Diamond Anvil ◽  
Stress States

AbstractIt is qualitatively well known that kinetics related to nucleation and growth can shift apparent phase boundaries from their equilibrium value. In this work, we have measured this effect in Bi using time-resolved X-ray diffraction with unprecedented 0.25 ms time resolution, accurately determining phase transition pressures at compression rates spanning five orders of magnitude (10–2–103 GPa/s) using the dynamic diamond anvil cell. An over-pressurization of the Bi-III/Bi-V phase boundary is observed at fast compression rates for different sample types and stress states, and the largest over-pressurization that is observed is ΔP = 2.5 GPa. The work presented here paves the way for future studies of transition kinetics at previously inaccessible compression rates.

Time‐resolved stimulated Raman scattering in a diamond anvil cell

1987 ◽  
Vol 86 (4) ◽  
pp. 2423-2427 ◽  
Author(s):  
Michael Baggen ◽  
Martin van Exter ◽  
Ad Lagendijk
Keyword(s):  
Raman Scattering ◽  
Diamond Anvil Cell ◽  
Stimulated Raman Scattering ◽  
Time Resolved ◽  
Diamond Anvil ◽  
Stimulated Raman

scholarly journals Time-Resolved Synchrotron X-ray Diffraction on Pulse Laser Heated Iron in Diamond Anvil Cell

2012 ◽  
Vol 377 ◽  
pp. 012108 ◽  
Author(s):  
Choong-Shik Yoo ◽  
Haoyan Wei ◽  
Ranga Dias ◽  
Guoyin Shen ◽  
Jesse Smith ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Diamond Anvil Cell ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
X Ray ◽  
Diamond Anvil ◽  
Laser Heated

scholarly journals Time-Resolved Reflectivity Measurement of the Pressure-Enhanced Crystallization Rate of Amorphous Si in a Diamond Anvil Cell

1988 ◽  
Vol 100 ◽  
Author(s):  
G. Q. Lu ◽  
E. Nygren ◽  
M. J. Aziz ◽  
D. Turnbull ◽  
C. W. White
Keyword(s):  
Pressure Dependence ◽  
Diamond Anvil Cell ◽  
Activation Volume ◽  
Solid Phase ◽  
Crystallization Rate ◽  
Time Resolved ◽  
Reflectivity Measurement ◽  
Diamond Anvil ◽  
Fluid Argon

ABSTRACTWe have measured the pressure dependence of the solid phase epitaxial growth (SPEG) rate of self-implanted Si (100) by using the in-situ time-resolved reflectivity technique [1] in a hightemperature and high-pressure diamond anvil cell (DAC). With fluid argon as the pressure transmission medium, a clean and perfectly hydrostatic pressure environment is achieved around the sample. The external heating geometry employed in the DAC provides a uniform temperature across the sample. At temperatures in the range of 530 – 550 °C and pressure up to 50 kbars (5 GPa), the growth rate is enhanced by up to a factor of ten over that at 1 atmosphere pressure. The results are characterized by a negative activation volume of approximately −3.0 cm3/mole (−27% of the atomic volume). These preliminary results show a significantly weaker pressure dependence than does the previous work of Nygren et al. [2], who found an activation volume of −8.7 cm3/mole. The implications of these results for the nature of the defect responsible for thermal SPEG and irradiation enhanced SPEG is discussed.

scholarly journals Strategies forin situlaser heating in the diamond anvil cell at an X-ray diffraction beamline

2013 ◽  
Vol 21 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Sylvain Petitgirard ◽  
Ashkan Salamat ◽  
Pierre Beck ◽  
Gunnar Weck ◽  
Pierre Bouvier
Keyword(s):  
High Pressure ◽  
Nd:Yag Laser ◽  
Laser Heating ◽  
Diamond Anvil Cell ◽  
X Ray Diffraction ◽  
Time Resolved ◽  
Pulsed Nd:Yag Laser ◽  
X Ray ◽  
Diamond Anvil

An overview of several innovations regardingin situlaser-heating techniques in the diamond anvil cell at the high-pressure beamline ID27 of the European Synchrotron Radiation Facility is presented. Pyrometry measurements have been adapted to allow simultaneous double-sided temperature measurements with the installation of two additional online laser systems: a CO2and a pulsed Nd:YAG laser system. This reiteration of laser-heating advancements at ID27 is designed to pave the way for a new generation of state-of-the-art experiments that demand the need for synchrotron diffraction techniques. Experimental examples are provided for each major development. The capabilities of the double pyrometer have been tested with the Nd:YAG continuous-wave lasers but also in a time-resolved configuration using the nanosecond-pulsed Nd:YAG laser on a Fe sample up to 180 GPa and 2900 K. The combination of time-resolved X-ray diffraction within situCO2laser heating is shown with the crystallization of a high-pressure phase of the naturally found pyrite mineral MnS2(11 GPa, 1100–1650 K).

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