Sequence and Mechanism of Reactions in Ilmenite and Aluminum System

Document Type : Original Articles

Authors

• Razieh Khoshhal ¹
• Mohammad Ali Boutorabi ²
• Mansour Soltanieh ¹

¹ Iran University of Science and Technology

² School of Metallurgy and Materials Engineering, Iran University of Science and Technology, 16846-13114, Tehran, Iran.

10.22067/ma.v26i2.31896

Abstract

In this research, the first step of reactions in ilmenite-aluminum-graphite system for the formation of Al2O3-TiC/Fe composites was investigated by the study of the binary system of aluminum and ilmenite. The milled and pressed samples prepared by the synthesized ilmenite and aluminum powders having the molar ratio of 1:2 were heat treated at the critical temperatures obtained from DTA analysis. It was found that a transient Fe phase is formed along with TiO2. The spherical shaped Fe2Ti phase was then formed in the matrix consisting of TiO2 and Al2O3.

Keywords

• Ilmenite
• Aluminum
• Fe-TiC/Al2O3 composites

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