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Thermodynamic Modeling and Calculation of Phase Equilibria in the Strontium–Calcium–CopperOxygen System at Ambient Pressure
Author(s) -
Risold Daniel,
Hallstedt Bengt,
Gauckler Ludwig J.
Publication year - 1997
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1997.tb02865.x
Subject(s) - strontium , thermodynamics , phase diagram , isothermal process , gibbs free energy , partial pressure , bar (unit) , chemistry , phase (matter) , calphad , thermodynamic process , oxygen , material properties , physics , organic chemistry , meteorology
The phase‐diagram and thermodynamic data on the Sr–Ca–CuO system at a total pressure of 10 5 Pa (1 bar) are reviewed and assessed. Gibbs energy functions for the (Sr,Ca) solid solutions and the liquid are optimized, and a consistent thermodynamic description is presented. Calculated phase relations are shown in various isothermal and isoplethal sections and compared to experimental data. Special attention is given to the stability of the infinite‐layer compound, as a function of temperature and oxygen partial pressure.