Deformation of single crystal sample using D-DIA apparatus coupled with synchrotron X-rays: In situ stress and strain measurements at high pressure and temperature

Single crystals of technical purity Magnesium (99.8 wt.%) of initial orientations [ ] 2 1 10 and [ ] 2 2 11 were subjected to HPT deformation at room temperature up to strains of 10. The microstructural evolution has been analyzed by X-ray microtexture investigations and by in-situ stress-strain measurements. The results can be described in terms of shear arising from HPT deformation and - with higher strains - in terms of recrystallization. In crystals with hard orientation[ ] 2 2 11 , these features occur at smaller strains than in crystals with soft orientation [ ] 2 1 10 , i.e. with higher symmetry. In general, the observed textures and strength variations are much stronger than those reported for fcc HPT deformed metals.

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The effect of diffraction by the diamonds of a diamond-anvil cell on single-crystal sample intensities

Journal of Applied Crystallography ◽

10.1107/s0021889890005635 ◽

1990 ◽

Vol 23 (5) ◽

pp. 392-396 ◽

Cited By ~ 36

Author(s):

J. S. Loveday ◽

M. I. McMahon ◽

R. J. Nelmes

Keyword(s):

High Pressure ◽

Single Crystal ◽

Diamond Anvil Cell ◽

Structural Information ◽

Wavelength Dependence ◽

Single Crystal Sample ◽

Data Sets ◽

Crystal Sample ◽

Diamond Anvil ◽

Integrated Intensities

The integrated intensities measured in X-ray single-crystal high-pressure structural studies using a diamond-anvil cell are shown to be reduced substantially when the diamonds diffract at the same setting as the sample – by as much as 50% in some cases. The pressure and wavelength dependence of this process have been studied and also the effect of changing the beam divergence by the use of a synchrotron beam. The consequences for the accuracy of structural information derived from data sets collected at high pressure are considered and a data-collection strategy for detecting and avoiding the effects of diamond diffraction is proposed.

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IN SITU STUDIES OF THE PROPERTIES OF MATERIALS UNDER HIGH-PRESSURE AND TEMPERATURE CONDITIONS USING MULTI-ANVIL APPARATUS AND SYNCHROTRON X-RAYS

Annual Review of Materials Science ◽

10.1146/annurev.matsci.28.1.349 ◽

1998 ◽

Vol 28 (1) ◽

pp. 349-374 ◽

Cited By ~ 15

Author(s):

J. B. Parise ◽

D. J. Weidner ◽

J. Chen ◽

R. C. Liebermann ◽

G. Chen

Keyword(s):

High Pressure ◽

X Rays ◽

High Pressure And Temperature ◽

In Situ Studies ◽

Temperature Conditions ◽

Properties Of Materials

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A combination of a Drickamer anvil apparatus and monochromatic X-rays for stress and strain measurements under high pressure

Journal of Synchrotron Radiation ◽

10.1107/s0909049509033342 ◽

2009 ◽

Vol 16 (6) ◽

pp. 742-747 ◽

Cited By ~ 3

Author(s):

Norimasa Nishiyama ◽

Yanbin Wang ◽

Tetsuo Irifune ◽

Takeshi Sanehira ◽

Mark L. Rivers ◽

...

Keyword(s):

High Pressure ◽

Stress And Strain ◽

X Rays ◽

Strain Measurements

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A versatile environmental control cell forin situguest exchange single-crystal diffraction

Journal of Applied Crystallography ◽

10.1107/s160057671500432x ◽

2015 ◽

Vol 48 (2) ◽

pp. 578-581 ◽

Cited By ~ 10

Author(s):

Jordan M. Cox ◽

Ian M. Walton ◽

Cassidy A. Benson ◽

Yu-Sheng Chen ◽

Jason B. Benedict

Keyword(s):

Single Crystal ◽

Gas Flow ◽

Environmental Control ◽

Metal Organic Framework ◽

Control Cell ◽

Single Crystal Sample ◽

Single Crystal Diffraction ◽

Crystal Sample ◽

Metal Organic

In situsingle-crystal diffraction experiments provide researchers with the opportunity to study the response of crystalline systems, including metal–organic frameworks and other nanoporous materials, to changing local microenvironments. This paper reports a new environmental control cell that is remarkably easy to use, completely reusable, and capable of delivering static or dynamic vacuum, liquids or gases to a single-crystal sample. Furthermore the device is nearly identical in size to standard single-crystal mounts so a full unrestricted range of motion is expected for most commercial goniometers.In situsingle-crystal X-ray diffraction experiments performed under dynamic gas-flow conditions revealed the cell was capable of stabilizing a novel metastable intermediate in the dehydration reaction of a previously reported metal–organic framework.

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In Situ Stress and Strain Measurements During the Growth of Cu/Ni (001) Multilayers

MRS Proceedings ◽

10.1557/proc-615-g8.6.1 ◽

2000 ◽

Vol 615 ◽

Cited By ~ 1

Author(s):

T. Bigault ◽

F. Bocquet ◽

S. Labat ◽

O. Thomas ◽

A. Marty ◽

...

Keyword(s):

Room Temperature ◽

Molecular Beam ◽

Lattice Parameter ◽

In Situ Stress ◽

Stress And Strain ◽

Strain Measurements ◽

Curvature Measurements ◽

Pseudomorphic Growth ◽

Average Lattice

ABSTRACTCu/Ni (001) multilayers have been grown by molecular beam epitaxy at room temperature. In-situ electron diffraction and curvature measurements performed during the growth are presented. The average lattice parameter in the equiatomic multilayers evolves gradually towards the alloy lattice parameter. The in-plane lattice parameter of both Cu and Ni evolves continuously towards the bulk lattice parameter with no evidence of pseudomorphic growth. The combination of diffraction and curvature measurements suggests that the Ni on Cu interface is diffuse. This is attributed to the surfactant behaviour of Cu. This results shed new insights into the interesting magnetic properties of Ni films on Cu (001).

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Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

10.26434/chemrxiv.11345063.v2 ◽

2020 ◽

Author(s):

Keishiro Yamashita ◽

Kazuki Komatsu ◽

Hiroyuki Kagi

Keyword(s):

Crystal Structure ◽

High Pressure ◽

Crystal Growth ◽

Single Crystal ◽

Room Temperature ◽

Growth Technique ◽

Salt Hydrate ◽

X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

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