Structural evolution of gypsum under high pressure: single-crystal X-ray experiments revisited

2018 ◽  
Vol 45 (9) ◽  
pp. 895-906 ◽  
Author(s):  
Tsung-Lung Li ◽  
Pei-Lun Lee
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Structural Evolution ◽  
X Ray

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

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.

Monoclinic FeO at high pressures

2008 ◽  
Vol 223 (7/2008) ◽  
Author(s):  
Innokenty Kantor ◽  
Alexander Kurnosov ◽  
Catherine McCammon ◽  
Leonid Dubrovinsky
Keyword(s):  
High Pressure ◽  
Iron Oxide ◽  
Single Crystal ◽  
Diffraction Study ◽  
High Pressures ◽  
X Ray Diffraction ◽  
X Ray

AbstractA high-pressure quasi-single crystal X-ray diffraction study of a synthetic iron oxide Fe

The high-pressure anisotropic thermoelastic properties of a potential inner core carbon-bearing phase, Fe7C3, by single-crystal X-ray diffraction

2018 ◽  
Vol 103 (10) ◽  
pp. 1568-1574 ◽  
Author(s):  
Xiaojing Lai ◽  
Feng Zhu ◽  
Jiachao Liu ◽  
Dongzhou Zhang ◽  
Yi Hu ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Inner Core ◽  
X Ray Diffraction ◽  
Thermoelastic Properties ◽  
X Ray

scholarly journals Comparison between beryllium and diamond-backing plates in diamond-anvil cells: Application to single-crystal x-ray diffraction high-pressure data

2011 ◽  
Vol 82 (5) ◽  
pp. 055111 ◽  
Author(s):  
Benedetta Periotto ◽  
Fabrizio Nestola ◽  
Tonci Balic-Zunic ◽  
Ross J. Angel ◽  
Ronald Miletich ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Pressure Data ◽  
X Ray Diffraction ◽  
Diamond Anvil Cells ◽  
X Ray ◽  
Diamond Anvil

scholarly journals A high-pressure single-crystal X-ray study of ZnSiO3 pyroxene: possible phase transitions at 19kbar and 51kbar.

1989 ◽  
Vol 14 (8) ◽  
pp. 383-387 ◽  
Author(s):  
Yasuhiro KUDOH ◽  
Hiroshi TAKEDA ◽  
Haruo OHASHI
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Single Crystal ◽  
X Ray

scholarly journals Crystal Structures of Al2Cu Revisited: Understanding Existing Phases and Exploring Other Potential Phases

Metals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1037 ◽  
Author(s):  
Sai Wang ◽  
Changzeng Fan
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Single Crystal ◽  
First Principles ◽  
First Principles Calculations ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structural Relationships ◽  
Al2cu Phase ◽  
High Pressure Sintering

When processing single crystal X-ray diffraction datasets for twins of Al2Cu sample synthesized by the high-pressure sintering (HPS) method, we have clarified why the crystal structure of Al2Cu was incorrectly solved about a century ago. The structural relationships between all existing Al2Cu phases, including the Owen-, θ-, θ’-, and Ω-Al2Cu phases, were investigated and established based on a proposed pseudo Al2Cu phase. Two potential phases have been built up by adjusting the packing sequences of A/B layers of Al atoms that were inherent in all existing Al2Cu phases. The mechanical, thermal, and dynamical stability of two such novel phases and their electronic properties were investigated by first-principles calculations.

Compressibility of hingganite-(Y): high-pressure single crystal X-ray diffraction study

2020 ◽  
Vol 47 (5) ◽  
Author(s):  
Liudmila A. Gorelova ◽  
Anna S. Pakhomova ◽  
Sergey V. Krivovichev ◽  
Anatoly V. Kasatkin ◽  
Leonid S. Dubrovinsky
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Diffraction Study ◽  
X Ray Diffraction ◽  
X Ray
Sign in / Sign up

Export Citation Format

Share Document