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 inCalphad Vol. 40; pp. 1 - 9
Main Authors Zienert, Tilo, Fabrichnaya, Olga
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2013
Subjects
Al2O3
Calphad
DTA
MgAl2O4
MgO
DTA
MgAl2O4
MgO
Calphad
Al2O3
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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