Investigation of the influence of pressurized CO2 on the crystal growth of poly(l-lactic acid) by using an in situ high-pressure optical system

Soft Matter ◽  
2019 ◽  
Vol 15 (28) ◽  
pp. 5714-5727 ◽  
Author(s):  
Lei Zhang ◽  
Guoqun Zhao ◽  
Guilong Wang
Keyword(s):  
High Pressure ◽  
Lactic Acid ◽  
Crystal Growth ◽  
Optical System ◽  
System P ◽  
Rhythmic Growth

The rhythmic growth of the bamboo-like branch of PLLA crystals under pressurized CO2.

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.

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

2019 ◽  
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 2.51 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.

Development of optical system for high temperature in situ observation of oxide crystal growth

1993 ◽  
Vol 142 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Weiqing Jin ◽  
Jinyuan Chen ◽  
Wensheng Li ◽  
Hongping Yan
Keyword(s):  
Crystal Growth ◽  
High Temperature ◽  
Optical System ◽  
In Situ Observation ◽  
Oxide Crystal

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.

Transport phenomena in a high pressure crystal growth system: In situ synthesis for InP melt

1997 ◽  
Vol 177 (3-4) ◽  
pp. 196-206 ◽  
Author(s):  
H. Zhang ◽  
V. Prasad ◽  
A.P. Anselmo ◽  
D.F. Bliss ◽  
G. Iseler
Keyword(s):  
High Pressure ◽  
Crystal Growth ◽  
Transport Phenomena ◽  
In Situ Synthesis ◽  
Growth System

In situ visualization of the quasi-periodic crystal growth interface fluctuation by growth interface electromotive force spectrum in a Czochralski system

CrystEngComm ◽  
2019 ◽  
Vol 21 (7) ◽  
pp. 1107-1113 ◽  
Author(s):  
Yunzhong Zhu ◽  
Shaopeng Lin ◽  
Zhihua Liu ◽  
Wenjia Wang ◽  
Decai Ma ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Electromotive Force ◽  
Temperature Fluctuations ◽  
Crystal Growth Rate ◽  
Growth Interface ◽  
System P ◽  
Supercooling Degree ◽  
In Situ Visualization ◽  
Interface Fluctuation

Growth interface electromotive force (GEMF) visualizes the real-time states of crystal growth rate, supercooling degree and rotation temperature fluctuations.

scholarly journals High pressure exploration in the Li–Ln–V–O system

2020 ◽  
Vol 49 (39) ◽  
pp. 13663-13670
Author(s):  
A. I. Zadoya ◽  
Á. M. Arévalo-López ◽  
J. Sánchez-Benítez ◽  
M. Huvé ◽  
J.-F. Blach ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Pressure ◽  
Spectroscopy Study ◽  
System P

An in situ high pressure Raman spectroscopy study on AP-LiLa5O5(VO4)2 allowed evidencing two new phases which were further stabilized using HP–HT synthesis.

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