Optimization of Sm3+ fluorescence in Sm-doped yttrium aluminum garnet: Application to pressure calibration in diamond-anvil cell at high temperature

2002 ◽  
Vol 92 (8) ◽  
pp. 4349-4353 ◽  
Author(s):  
Carmen Sanchez-Valle ◽  
Isabelle Daniel ◽  
Bruno Reynard ◽  
Robert Abraham ◽  
Christelle Goutaudier
Keyword(s):  
High Temperature ◽  
Diamond Anvil Cell ◽  
Yttrium Aluminum Garnet ◽  
Pressure Calibration ◽  
Yttrium Aluminum ◽  
Diamond Anvil

High temperature diamond anvil cell with the laser heating

1989 ◽  
Vol 1 (5-6) ◽  
pp. 337-340 ◽  
Author(s):  
M. I. Eremets ◽  
V. V. Struzhkin ◽  
I. A. Trojan
Keyword(s):  
High Temperature ◽  
Laser Heating ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

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.

scholarly journals Experimental method for in situ determination of material textures at simultaneous high pressure and high temperature by means of radial diffraction in the diamond anvil cell

2009 ◽  
Vol 80 (10) ◽  
pp. 104501 ◽  
Author(s):  
Hanns-Peter Liermann ◽  
Sébastien Merkel ◽  
Lowell Miyagi ◽  
Hans-Rudolf Wenk ◽  
Guoyin Shen ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Experimental Method ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

Cryogenic gas loading in a Mao–Bell-type diamond anvil cell for high pressure-high temperature investigations

2008 ◽  
Vol 79 (7) ◽  
pp. 076103 ◽  
Author(s):  
M. Sekar ◽  
N. R. Sanjay Kumar ◽  
P. Ch. Sahu ◽  
N. V. Chandra Shekar ◽  
N. Subramanian
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Diamond Anvil Cell ◽  
High Pressure High Temperature ◽  
Diamond Anvil
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