Phase relationships in the Cr-Li-K-C-O system at 650/sup 0/C

Journal Article · Wed Oct 01 04:00:00 EDT 1986 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2108343· OSTI ID:6535307

Hsu, H S; De Van, J H

The reaction of chromium with Li/sub 2/CO/sub 3-/K/sub 2/CO/sub 3/ melts was investigated from a thermodynamic point of view. Thermochemical calculations with the SOLGASMIX-PV computer program were used to establish equilibrium phase relationships for the Cr-Li-K-C-O system at 650/sup 0/C. The calculated phase relationships were checked experimentally by thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The results of TGA and DTA were self-consistent with respect to the reaction products predicted from the calculated phase stability diagrams. Finally, the phase stability diagrams of the Cr-Li-K-C-O system were used as an aid in understanding the corrosion processes of chromium in molten carbonate salt under both fuel gas and oxidizing gas used in molten carbonate fuel cells.

• Research Organization: Oak Ridge National Lab., Oak Ridge, TN
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6535307
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 133:10; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHEMICAL ANALYSIS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM
COMPUTER CODES
CORROSION
DIAGRAMS
DIFFERENTIAL THERMAL ANALYSIS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELEMENTS
EQUILIBRIUM
FLUIDS
FUEL CELLS
FUEL GAS
FUELS
GAS FUELS
GASES
GRAVIMETRIC ANALYSIS
HIGH TEMPERATURE
HIGH-TEMPERATURE FUEL CELLS
KINETICS
LITHIUM CARBONATES
LITHIUM COMPOUNDS
MATERIALS TESTING
METALS
MOLTEN CARBONATE FUEL CELLS
OXIDATION
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHASE STUDIES
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
REACTION KINETICS
S CODES
TESTING
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMOCHEMICAL PROCESSES
THERMODYNAMICS
TRANSITION ELEMENTS