Laboratory-based x-ray computed tomography for 3D imaging of samples in a diamond anvil cell in situ at high pressures

2020 ◽  
Vol 91 (9) ◽  
pp. 093703
Author(s):  
Kenji Ohta ◽  
Tatsuya Wakamatsu ◽  
Manabu Kodama ◽  
Katsuyuki Kawamura ◽  
Shuichiro Hirai
Keyword(s):  
Computed Tomography ◽  
3D Imaging ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
X Ray ◽  
Diamond Anvil ◽  
X Ray Computed

scholarly journals Experimental Issues in In-Situ Synchrotron X-Ray Diffraction at High Pressure and Temperature by Using a Laser-Heated Diamond-Anvil Cell

1997 ◽  
Vol 499 ◽  
Author(s):  
C. S. Yoo ◽  
H. Cynn ◽  
A. Campbell ◽  
J.-Z. Hu
Keyword(s):  
Diamond Anvil Cell ◽  
High Pressures ◽  
Thermal Gradients ◽  
X Ray Diffraction ◽  
High Pressure And Temperature ◽  
X Ray ◽  
Diamond Anvil ◽  
Integrated Technique ◽  
Laser Heated

ABSTRACTAn integrated technique of diamond-anvil cell, laser-heating and synchrotron x-ray diffraction technologies is capable of structural investigation of condensed matter in an extended region of high pressures and temperatures above 100 GPa and 3000 K. The feasibility of this technique to obtain reliable data, however, strongly depends on several experimental issues, including optical and x-ray setups, thermal gradients, pressure homogeneity, preferred orientation, and chemical reaction. In this paper, we discuss about these experimental issues together with future perspectives of this technique for obtaining accurate data.

Anisotropic thermal expansion of calcite at high pressures; an in situ X-ray diffraction study in a hydrothermal diamond-anvil cell

1995 ◽  
Vol 80 (9-10) ◽  
pp. 941-946 ◽  
Author(s):  
Tzy-Chung Wu ◽  
Andy H. Shen ◽  
Maura S. Weathers ◽  
William A. Bassett ◽  
I-Ming Chou
Keyword(s):  
Thermal Expansion ◽  
Diffraction Study ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
X Ray Diffraction ◽  
X Ray ◽  
Anisotropic Thermal Expansion ◽  
Diamond Anvil

PHASE TRANSITION IN LAYERED PEROVSKITE LIKE MANGANATE Ca3Mn2O7 UNDER HIGH PRESSURE

2001 ◽  
Vol 15 (18) ◽  
pp. 2491-2497 ◽  
Author(s):  
J. L. ZHU ◽  
L. C. CHEN ◽  
R. C. YU ◽  
F. Y. LI ◽  
J. LIU ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Diamond Anvil Cell ◽  
The Other ◽  
Layered Perovskite ◽  
X Ray Diffraction ◽  
Two Phase ◽  
X Ray ◽  
Diamond Anvil

In situ high pressure energy dispersive X-ray diffraction measurements on layered perovskite-like manganate Ca 3 Mn 2 O 7 under pressures up to 35 GPa have been performed by using diamond anvil cell with synchrotron radiation. The results show that the structure of layered perovskite-like manganate Ca 3 Mn 2 O 7 is unstable under pressure due to the easy compression of NaCl-type blocks. The structure of Ca 3 Mn 2 O 7 underwent two phase transitions under pressures in the range of 0~35 GPa. One was at about 1.3 GPa with the crystal structure changing from tetragonal to orthorhombic. The other was at about 9.5 GPa with the crystal structure changing from orthorhombic back to another tetragonal.

In-situ X-ray computed tomography of composites subjected to fatigue loading

2019 ◽  
Vol 236 ◽  
pp. 128-130 ◽  
Author(s):  
Peter Wagner ◽  
Oliver Schwarzhaupt ◽  
Michael May
Keyword(s):  
Computed Tomography ◽  
Fatigue Loading ◽  
X Ray ◽  
X Ray Computed

Quantitative In-situ Analysis of Water Transport in Concrete Completed Using X-ray Computed Tomography

2018 ◽  
Vol 127 (2) ◽  
pp. 371-389 ◽  
Author(s):  
Tyler Oesch ◽  
Frank Weise ◽  
Dietmar Meinel ◽  
Christian Gollwitzer
Keyword(s):  
Computed Tomography ◽  
Water Transport ◽  
In Situ Analysis ◽  
X Ray ◽  
X Ray Computed

scholarly journals Observation of microstructure change during freeze-drying by in-situ X-ray Computed Tomography

2018 ◽  
Author(s):  
Kyuya Nakagawa ◽  
Shinri Tamiya ◽  
Shu Sakamoto ◽  
Gabsoo Do ◽  
Shinji Kono ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Freeze Drying ◽  
Glassy State ◽  
Structural Deformation ◽  
Microstructure Formation ◽  
Microstructure Change ◽  
X Ray ◽  
X Ray Computed ◽  
The Many

X-ray computed tomography technique was used to observe microstructure formation during freeze-drying. A specially designed vacuum freeze-drying stage was equipped at the X-ray CT stage, and the frozen and dried microstructures of dextrin solutions were successfully observed. It was confirmed that the many parts of the pore microstructures formed as a replica of the original ice microstructures, whereas some parts formed as a consequence of the dehydration dependent on the relaxation level of the glassy phases, suggesting that the post-freezing annealing is advantageous for avoiding quality loss that relates to the structural deformation of glassy matters. Keywords: freeze-drying; X-ray CT; ice microstructure; glassy state

Construction of laser-heated diamond anvil cell system for in situ x-ray diffraction study at SPring-8

2001 ◽  
Vol 72 (2) ◽  
pp. 1289 ◽  
Author(s):  
Tetsu Watanuki ◽  
Osamu Shimomura ◽  
Takehiko Yagi ◽  
Tadashi Kondo ◽  
Maiko Isshiki
Keyword(s):  
Diffraction Study ◽  
Diamond Anvil Cell ◽  
Cell System ◽  
X Ray Diffraction ◽  
X Ray ◽  
Diamond Anvil ◽  
Laser Heated
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