Formation of Two Types of Alumina/Intermetallic Composites based on the Reaction of Ilmenite and Aluminum

Author

Materials Science & Engineering, Birjand university of Technology

Abstract

Ilmenite is a valuable industrial mineral containing Fe and Ti elements. Two composites with different morphology and composition were produced using the reaction of synthesized ilmenite and aluminum. The molar ratios of 1:2 and 1:8 were selected. The critical temperatures of each molar ratio were determined using the Differential Thermal Analysis (DTA). The heat treatment of the systems with different molar ratios was conducted at selected temperatures on the activated primary powders. It was specified that in the molar ratio of 1:2, at first, FeTiO3 reacts with aluminum, which leads to the formation of Fe, TiO2 and Al2O3. At higher temperatures, Fe reacts with TiO2 and so spherical Fe2Ti forms in the matrix of TiO2 and Al2O3. It should be noted that in the molar ratio of 1:8, FeAl3, TiAl3 and Al2O3 form through the reaction of FeTiO3 and aluminum, as a matter of fact, none of their products do not change at higher temperatures.

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Main Subjects


1. Boyarchenko, O., Sytschev, A., Vadchenko, S., Kovalev, I.D., Shchukin, A., Vrel, D., NiAl Intermetallics DispersionStrengthened with Silica, Alumina, and Mullite: Synthesis and Characterization, (2014).
2. Kawamori, S., Machida, T., "Microstructure and Mechanical Properties of Alumina-Dispersed Magnesium Fabricated Using Mechanical Alloying Method", Materials Transactions, Vol. 48 (2007), 373-379.
3. Rouzanmehr, N.F., Karimzadeh, F., Enayati, M.H., "Synthesis and characterization of TiAl/ -Al2O3 nanocomposite by mechanical alloying", Journal of Alloys and Compounds, Vol. 478, (2009), 257-259.
4. Zhang, D.L., Cai, Z.H., Newby, M., "Low Cost Ti(Al/O)/Al2O3 And TixAly/Al2O3 Composites", Materials Technology, Vol. 18, (2003), 94-98.
5. Travitzky, N., Gotman, I., Claussen, N., "Alumina–Ti aluminide interpenetrating composites: microstructure and mechanical properties", Materials Letters, Vol. 57, (2003), 3422-3426.
6. Fan, R.-H., Liu, B., Zhang, J.-D., Bi, J.-Q., Yin, Y.-S., "Kinetic evaluation of combustion synthesis 3TiO2 + 7Al → 3TiAl + 2Al2O3 using non-isothermal DSC method", Materials Chemistry and Physics, Vol. 91, (2005), 140-145.
7. Li, Z.W., Gao, W., Zhang, D.L., Cai, Z.H., "High temperature oxidation behaviour of a TiAl–Al2O3 intermetallic matrix composite", Corrosion Science, Vol. 46, (2004), 1997-2007.
8. Cai, Z.H., Zhang, D.L., "Sintering behaviour and microstructures of Ti(Al,O)/Al2O3, Ti3Al(O)/Al2O3 and TiAl(O)/Al2O3 in situ composites", Materials Science and Engineering: A, Vol. 419, (2006), 310-317.
9. Feng, C.F., Froyen, L., "Formation of Al3Ti and Al2O3 from an Al–TiO2 system for preparing in-situ aluminium matrix composites", Composites Part A: Applied Science and Manufacturing, Vol. 31, (2000), 385-390.
10. Gasper, A.N.D., Catchpole-Smith, S., Clare, A.T., "In-situ synthesis of titanium aluminides by direct metal deposition", Journal of Materials Processing Technology, Vol. 239, (2017), 230-239.
11. Horvitz, D., Gotman, I., Gutmanas, E.Y., Claussen, N., "In situ processing of dense Al2O3–Ti aluminide interpenetrating phase composites", Journal of the European Ceramic Society, Vol. 22, (2002), 947-954.
12. Hansen, D.A., Traut, D.E., Fisher, G.T., "Extraction of Titanium and Iron from Ilmenite with Fluosilicic Acid", Report of Investigations, (1995).
13. Khoshhal, R., Soltanieh, M., Boutorabi, M.A., "Formation mechanism and synthesis of Fe–TiC/Al2O3 composite by ilmenite, aluminum and graphite", International Journal of Refractory Metals and Hard Materials, Vol. 45, (2014), 53-57.
14. Khoshhal, R., "The Effect of Raw Material Ratio on the Formation Mechanism of Fe-TiC/Al2O3 Composite", Advanced Ceramics Progress, Vol. 3, (2017), 25-30.
15. Welham, N.J., "Mechanochemical reaction between ilmenite (FeTiO3) and aluminium", Journal of Alloys and Compounds, Vol. 270, (1998), 228-236.
16. Welham, N.J., Willis, P.E., Kerr, T., "Mechanochemical formation of metal-ceramic composites", Journal of the American Ceramic Society, Vol. 83, (2000), 33-40.
17. Ĺšleziona, J., Dyzia, M., Myalski, J., Wieczorek, J., "The structure and properties of sinters produced from composite powders Al-Al2O3-Al3Fe-Al3Ti", Journal of Materials Processing Technology, Vol. 162-163, (2005), 127-130.
18. Sleziona, J., Dyzia, M., Wieczorek, J., "Application of liquid aluminium and FeO·TiO2 powder to the synthesis of composites in: AMME", Material Sciences Silesian University of Technology of Gliwis, (2003).
19. Chumarev, V., Dubrovskii, A., Pazdnikov, I., Shurygin, Y., Sel’menskikh, N., "Technological Possibilities of Manufacturing High-Grade Ferrotitanium from Crude Ore", Russian Metallurgy (Metally), Vol. 2008, (2008), 459-463.
20. Babyuk, V., Friedrich, B., Sokolov, V., "Investigations of Liquid Phase Aluminothermic Reduction of Ilmenite", World of Metallurgy, Vol. 60, (2007), 288-294.
21. Sokolov, V.M., Babyuk, V.D., Zhydkov, Y.A., Skok, Y.Y., "Aluminothermic studies of a liquid partial reduced ilmenite", Minerals Engineering, Vol. 21, (2008), 143-149.
22. Azizov, S.T., Kachin, A.R., Loryan, V.E., Borovinskaya, I.P., Mnatsakanyan, A.S., "Aluminothermic SHS of ferrotitanium from ilmenite: Influence of Al and KClO4 content of green composition", International Journal of Self-Propagating High-Temperature Synthesis, Vol. 23, (2014), 161-164.
23. Tang, A., Liu, S., Pan, F., " Novel approaches to produce Al2O3–TiC/TiCN–Fe composite powders directly from ilmenite", Progress in Natural Science: Materials International, Vol. 23, (2013), 501-507.
24. Khoshhal, R., Soltanieh, M., Boutorabi, M.A., "Investigation on the reactions sequence between synthesized ilmenite and aluminum", Journal of Alloys and Compounds, Vol. 628, (2015), 113-120.