Publications in Scientific Journals:
E. Povoden-Karadeniz, M. Chen, T. Ivas, A. Grundy, L.J. Gauckler:
"Thermodynamic modeling of La2O3-SrO-Mn2O3-Cr2O3 for solid oxide fuel cell applications";
Journal of Materials Research,
The thermodynamic La-Sr-Mn-Cr-O oxide database is obtained as an extension of thermodynamic descriptions of oxide subsystems using the CALPHAD (calculation of phase diagrams) approach. Concepts of the thermodynamic modeling of solid oxide phases are discussed. Gibbs energy functions of SrCrO4, Sr2.67Cr2O8, Sr2CrO4, and SrCr2O4 are presented, and thermodynamic model parameters of La-Sr-Mn-Chromite perovskite are given. Experimental solid solubilities and nonstoichiometries in La1-xSrxCrO3- and LaMn1-xCrxO3- are reproduced by the model. The presented oxide database can be used for applied computational thermodynamics of traditional Lanthanum manganite cathode with Cr-impurities. It represents the fundament for extensions to higher orders, aiming on thermodynamic calculations in noble symmetric SOFC.
La, oxide, phase equilibria, defects, energy generation
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
Created from the Publication Database of the Vienna University of Technology.