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Quaternary System Al 2 O 3 –CaO–MgO–SiO 2 : I, Study of the Crystallization Volume of Al 2 O 3
Author(s) -
Vázquez Bertha Alicia,
Caballero Angel,
Pena Pilar
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.tb03630.x
Subject(s) - liquidus , crystallization , impurity , analytical chemistry (journal) , mineralogy , materials science , volume (thermodynamics) , quenching (fluorescence) , phase diagram , aluminium oxides , solid solution , phase (matter) , crystallography , thermodynamics , chemistry , metallurgy , physics , organic chemistry , chromatography , quantum mechanics , fluorescence , biochemistry , catalysis
Compatibility relations of Al 2 O 3 in the quaternary system Al 2 O 3 –CaO–MgO–SiO 2 were studied by firing and quenching followed by microstructural and energy‐dispersive X‐ray examination. A projection of the liquidus surface of the primary phase volume of Al 2 O 3 was constructed in terms of the CaO, SiO 2 , and MgO contents of the mixtures recalculated to 100 wt%. Two invariant points, where four solids coexist with a liquid phase, were defined, and the positions of the isotherms were tentatively established. The effect of SiO 2 , MgO, and CaO impurities on Al 2 O 3 growth also was studied.