Phase formation in the process of iron and titanium oxides metallothermic reduction

Phase formation in the alloys obtained during process of collective Ti and Fe oxides reduction by Al has been investigated. Thermodynamic computer simulation of the process (based on the system free energy minimizing principle) has indicated a range of possible reactions with various metallic compou...

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Bibliographic Details
Published in:Journal of physics. Conference series 2008-02, Vol.98 (7), p.072013
Main Authors: Krasikov, S A, Nadolsky, A L, Shapovalov, A G, Pazdnikov, I P, Tashmurzin, A Y, Shurygin, Y Y, Osokina, M A
Format: Article
Language:English
Subjects:
Aluminum
Computer simulation
Exothermic reactions
Free energy
Intermetallic phases
Iron
Metal compounds
Physics
Reduction (metal working)
Titanium oxides
X-ray diffraction
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Summary:Phase formation in the alloys obtained during process of collective Ti and Fe oxides reduction by Al has been investigated. Thermodynamic computer simulation of the process (based on the system free energy minimizing principle) has indicated a range of possible reactions with various metallic compounds formation. Differential-thermal (DT), X-ray diffraction (XRD) methods and melting of reaction mixtures at 1773-1973 K have been carried out to confirm the thermodynamic predictions. The DT experiments showed that the process began after Al melting at 943 K and was accompanied by large exothermic effects. The intermetallic phases of alloys with various content of Ti, Fe and Al have been observed by the XRD analysis.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/98/7/072013