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Thermodynamic Assessment of the Miscibility Gaps and the Metastable Liquidi in the B 2 O 3 –RO Systems (R = Mg, Ca, Sr, and Ba)
Author(s) -
Kim Sung S.,
Sanders Thomas H.
Publication year - 2003
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.1151-2916.2003.tb03586.x
Subject(s) - liquidus , spinodal decomposition , metastability , phase diagram , thermodynamics , miscibility , spinodal , gibbs free energy , liquid phase , phase (matter) , liquid liquid , chemistry , materials science , polymer , chromatography , physics , organic chemistry
In an attempt to understand the liquid–liquid phase separation in the B 2 O 3 –MgO, B 2 O 3 –CaO, B 2 O 3 –SrO, and B 2 O 3 –BaO systems, the liquid miscibility gaps were calculated using the optimized interaction parameters of liquid phases. The Gibbs energies of liquid phases were derived in the form of a subregular solution from an optimization procedure based on phase diagram data. In addition, metastable liquidus boundaries and spinodal curves were also assessed by using the Gibbs energies of liquid phases. The present results were compared and discussed with other experimental and assessed data available in the literature.