In situambient and high-temperature Raman spectroscopic studies of nyerereite (Na,K)2Ca(CO3)2: can hexagonal zemkorite be stable at earth-surface conditions?

2015 ◽  
Vol 46 (10) ◽  
pp. 904-912 ◽  
Author(s):  
A. V. Golovin ◽  
A. V. Korsakov ◽  
A. N. Zaitsev
Keyword(s):  
High Temperature ◽  
Spectroscopic Studies ◽  
Earth Surface ◽  
Surface Conditions ◽  
Raman Spectroscopic

In-situ high-temperature Raman spectroscopic studies of aluminosilicate liquids

1995 ◽  
Vol 22 (2) ◽  
Author(s):  
Isabelle Daniel ◽  
Philippe Gillet ◽  
BrentT. Poe ◽  
PaulF. McMillan
Keyword(s):  
High Temperature ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic

High-temperature Raman spectroscopic studies on nickel iodates

1997 ◽  
Vol 293 (1-2) ◽  
pp. 13-24 ◽  
Author(s):  
G. Pracht ◽  
N. Lange ◽  
H.D. Lutz
Keyword(s):  
High Temperature ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic

Behavior of phengite at high temperature and high pressure: In situ IR and Raman spectroscopic studies

2019 ◽  
Author(s):  
WENDI Liu ◽  
Yan Yang ◽  
Zeming Qi ◽  
Zhongping Wang ◽  
Weihua Huang ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Spectroscopic Studies ◽  
Raman Spectroscopic ◽  
In Situ Ir ◽  
Ir And Raman

scholarly journals Operando Raman spectroscopic studies of lithium zirconates during CO2 capture at high temperature

RSC Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 8222-8231 ◽  
Author(s):  
Diana Peltzer ◽  
John Múnera ◽  
Laura Cornaglia
Keyword(s):  
Raman Spectroscopy ◽  
High Temperature ◽  
Co2 Capture ◽  
Phase Evolution ◽  
Spectroscopic Studies ◽  
Capture Process ◽  
Raman Spectroscopic

Operando Raman spectroscopy allowed following up the phase evolution for K-doped lithium zirconates during the CO2 capture process.

The Corrosion Resistance of Inconel Alloy 600 in High Temperature Phosphate Solutions

CORROSION ◽  
1977 ◽  
Vol 33 (4) ◽  
pp. 130-144 ◽  
Author(s):  
N. PESSALL ◽  
A. B. DUNLAP ◽  
D. W. FELDMAN
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Sodium Phosphate ◽  
Spectroscopic Studies ◽  
Alloy 600 ◽  
Inconel Alloy ◽  
Raman Spectroscopic ◽  
Alloy 800 ◽  
Alloy 690 ◽  
Phosphate Solutions

Abstract A test program is described in which the corrosion resistance of Inconel Alloy 600 and other alloys is evaluated in sodium phosphate solutions at temperatures between 275 and 325 C. For Inconel Alloy 600, a significant increase in corrosion resistance is associated with the increase in phosphate solubility which occurs when the Na/P ratio (r) is reduced from 3.0 to below 2.0. In solutions characterized by 2 > r > 1.35, the corrosion resistance of Inconel Alloy 600 exhibits a minimum value. Inconel Alloy 690 and Incoloy Alloy 800 exhibit similar corrosion behavior. Raman spectroscopic studies of sodium phosphate solutions indicate a conversion at 200 C of Na3PO4 → Na2HPO4, while both Na2HPO4 and NaH2PO4 are stable up to 320 C. The Raman spectra provide the basis for a good correlation between the corrosion resistance of Inconel Alloy 600 and the concentration of HPO4= or H2PO4− species in the high temperature phosphate environments.

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