Thermodynamic assessment and experiments in the system MgO–Al2O3

Samples with alumina rich compositions in the system MgO–Al2O3 were investigated with DTA up to 2473K. The peritectic reaction L+Al2O3→ Spinel predicted from calculations was confirmed in this study. A critical literature review was done focusing on the degree of inversion of stoichiometric spinel M...

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Bibliographic Details
Published in:Calphad 2013-03, Vol.40, p.1-9
Main Authors: Zienert, Tilo, Fabrichnaya, Olga
Format: Article
Language:English
Subjects:
Al2O3
Calphad
DTA
MgAl2O4
MgO
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Summary:Samples with alumina rich compositions in the system MgO–Al2O3 were investigated with DTA up to 2473K. The peritectic reaction L+Al2O3→ Spinel predicted from calculations was confirmed in this study. A critical literature review was done focusing on the degree of inversion of stoichiometric spinel MgAl2O4. Experimental results and the most reliable literature data were used for re-optimisation of thermodynamic parameters of the quasi binary system.
ISSN:0364-5916
DOI:10.1016/j.calphad.2012.10.001