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High‐temperature mass spectrometric study of the thermodynamic properties of the CaOAl 2 o 3 system
Author(s) -
Stolyarova V. L.,
Shornikov S. I.,
Shultz M. M.
Publication year - 1995
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290090811
Subject(s) - chemistry , knudsen number , atmospheric temperature range , gibbs free energy , thermodynamics , analytical chemistry (journal) , chromatography , physics
Using the Knudsen effusion mass spectrometric method, the composition of vapour and the partial pressures of vapour species over melts of the CaOAl 2 O 3 system were studied for the temperature range 1833–2033 K. Thermodynamic functions of the CaOAl 2 O 3 system were obtained, and the negative deviations from ideal behaviour were illustrated. The dependence of the Gibbs energies of formation of the CaOAl 2 O 3 system on temperature and concentration of components was suggested.