Interfacial reactions, thermodynamics and kinetics in doped aluminosilicate ceramics/liquid Al-alloy contacting systems

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Oliveira, M.
Agathopoulos, S.
Lino, J.
Ferreira, J. M. F.

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Trans Tech Publications Ltd.

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peer reviewed

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Advanced Materials Forum Ii

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Doping of alumino-silicate crucibles with MgO, CaO, or BaO aimed for improving their performance towards Al-alloy melts in aluminium foundry industry. Depending on the particular oxide, doping considerably affects microstructure and crystalline state of resulting ceramics, as well as interfacial reactions with Al-alloys at elevated temperatures. Analysis of reaction features, in terms of reaction zone structure, mechanism and kinetics, for each particular doping oxide, indicates that reaction intensity and kinetics follow the order MgO>BaO>CaO.

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interfacial reactions, alumino-silicates, mgo, cao, bao, al-alloys, molten aluminum, al2o3-sio2 ceramics, refractories, additives

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<Go to ISI>://000222018500137

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en

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Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών

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