Equation of state and phase transition of antigorite under high pressure and high temperature

2014 ◽  
Vol 228 ◽  
pp. 56-62 ◽  
Author(s):  
Cuiping Yang ◽  
Toru Inoue ◽  
Akihiro Yamada ◽  
Takumi Kikegawa ◽  
Jun-ichi Ando
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
High Temperature ◽  
Equation Of State

scholarly journals Monitoring phase transition of aqueous biomass model substrates by high-pressure and high-temperature microfluidics

2019 ◽  
Vol 40 (4) ◽  
pp. 563-570 ◽  
Author(s):  
Renée M. Ripken ◽  
Stefan Schlautmann ◽  
Remco G.P. Sanders ◽  
Johannes G.E. Gardeniers ◽  
Séverine Le Gac
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
High Temperature ◽  
Monitoring Phase

Phase Transition and vibration properties of MnCO3 at high pressure and high-temperature by Raman spectroscopy

2018 ◽  
Vol 38 (3) ◽  
pp. 212-223 ◽  
Author(s):  
Chaoshuai Zhao ◽  
Heping Li ◽  
Jianjun Jiang ◽  
Yu He ◽  
Wen Liang
Keyword(s):  
Phase Transition ◽  
Raman Spectroscopy ◽  
High Pressure ◽  
High Temperature ◽  
Vibration Properties

High-pressure–high-temperature equation of state of KCl and KBr

2012 ◽  
Vol 85 (21) ◽  
Author(s):  
A. Dewaele ◽  
A. B. Belonoshko ◽  
G. Garbarino ◽  
F. Occelli ◽  
P. Bouvier ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Equation Of State ◽  
High Pressure High Temperature ◽  
Temperature Equation

scholarly journals The Phase Transition and Dehydration in Epsomite under High Temperature and High Pressure

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 75 ◽  
Author(s):  
Linfei Yang ◽  
Lidong Dai ◽  
Heping Li ◽  
Haiying Hu ◽  
Meiling Hong ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electrical Conductivity ◽  
High Pressure ◽  
High Temperature ◽  
Magnesium Sulfate ◽  
Room Temperature ◽  
Diamond Anvil Cell ◽  
Vibrational Modes ◽  
Diamond Anvil ◽  
T Phase

The phase stability of epsomite under a high temperature and high pressure were explored through Raman spectroscopy and electrical conductivity measurements in a diamond anvil cell up to ~623 K and ~12.8 GPa. Our results verified that the epsomite underwent a pressure-induced phase transition at ~5.1 GPa and room temperature, which was well characterized by the change in the pressure dependence of Raman vibrational modes and electrical conductivity. The dehydration process of the epsomite under high pressure was monitored by the variation in the sulfate tetrahedra and hydroxyl modes. At a representative pressure point of ~1.3 GPa, it was found the epsomite (MgSO4·7H2O) started to dehydrate at ~343 K, by forming hexahydrite (MgSO4·6H2O), and then further transformed into magnesium sulfate trihydrate (MgSO4·3H2O) and anhydrous magnesium sulfate (MgSO4) at higher temperatures of 373 and 473 K, respectively. Furthermore, the established P-T phase diagram revealed a positive relationship between the dehydration temperature and the pressure for epsomite.

High-pressure phase transition and equation of state of CsI

1990 ◽  
Vol 64 (15) ◽  
pp. 1749-1752 ◽  
Author(s):  
H. K. Mao ◽  
Y. Wu ◽  
R. J. Hemley ◽  
L. C. Chen ◽  
J. F. Shu ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Equation Of State ◽  
High Pressure Phase ◽  
High Pressure Phase Transition ◽  
Pressure Phase
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