Fabrication of an r-Al2Ti intermetallic matrix composite reinforced with α-Al2O3 ceramic by discontinuous mechanical milling for thermite reaction
Source abstract
Abstract
In this study, a powder mixture with an Al/TiO2 molar ratio of 10/3 was used to form an r-Al2Ti intermetallic matrix composite (IMC) reinforced with α-Al2O3 ceramic by a novel milling technique, called discontinuous mechanical milling (DMM) instead of milling and ignition of the produced thermite. The results of energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) of samples with varying milling time indicate that this fabrication process requires considerable mechanical energy. It is shown that Al2Ti-Al2O3 IMC with small grain size was produced by DMM after 15 h of ball milling. Peaks for γ-TiAl as well as Al2Ti and Al2O3 are observed in XRD patterns after DMM followed by heat treatment. The microhardness of the DMM-treated composite produced after heat treatment was higher than Hv 700.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Advanced ceramic materials synthesis · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
Show source-provided references
1. M. Yamaguchi, H. Inui, and K. Ito, High-temperature structural intermetallics, Acta Mater., 48(2000), p. 307.10.1016/S1359-6454(99)00301-8 ↗
2. K. Naplocha and K. Granat, Microwave activated combustion synthesis of porous Al-Ti structures for composite reinforcing, J. Alloys Compd., 486(2009), p. 178.10.1016/j.jallcom.2009.06.164 ↗
3. C.W. Hsu and C.C. Chao, Effect of heat treatments on in-situ Al2O3/TiAl3 composites produced from squeeze casting of TiO2/A356 composites, Metall. Mater. Trans. B, 33(2002), p. 31.10.1007/s11663-002-0082-6 ↗
4. D.Y. Ying, D.L. Zhang, and M. Newby, Solid-state reactions during heating mechanically milled Al/TiO2 composite powders, Metall. Mater. Trans. A, 35(2004), p. 2115.10.1007/s11661-004-0160-2 ↗
5. N.J. Welham, Mechanical activation of the formation of an alumina-titanium trialuminide composite, Intermetallics, 6(1998), p. 363.10.1016/S0966-9795(97)00087-3 ↗
6. N.J. Welham, Mechanical activation of the solid-state reaction between Al and TiO2, Mater. Sci. Eng. A, 255(1998), p. 81.10.1016/S0921-5093(98)00770-9 ↗
7. I. Gheorghe and H.J. Rack, Reactive infiltration of 25 vol Pct TiO2/Al composites, Metall. Mater. Trans. A, 33(2002), p. 2155.10.1007/s11661-002-0047-z ↗
8. C.F. Feng and L. Froyen, Formation of Al3Ti and Al2O3 from an Al-TiO2 system for preparing in-situ aluminium matrix composites, Compos. Part A, 31(2000), p. 385.10.1016/S1359-835X(99)00041-X ↗
9. S. Alamolhoda, S. Heshmati-Manesh, and A. Ataie, Role of intensive milling in mechano-thermal processing of TiAl/Al2O3 nano-composite, Adv. Powder Technol., 23(2012), No. 3, p. 343.10.1016/j.apt.2011.04.014 ↗
10. N. Travitzky, I. Gotman, and N. Claussen, Alumina-Ti aluminide interpenetrating composites: microstructure and mechanical properties, Mater. Lett., 57(2003), p. 3422.10.1016/S0167-577X(03)00090-9 ↗
11. C.L. Yeh and R.F. Li, Formation of TiAl-Ti5Si3 and TiAl-Al2O3 in situ composites by combustion synthesis, Intermetallics, 16(2008), p. 64.10.1016/j.intermet.2007.07.016 ↗
12. D. Horvitz, I. Gotman, E.Y. Gutmanas, and N. Claussen, In situ processing of dense Al2O3-Ti aluminide interpenetrating phase composites, J. Eur. Ceram. Soc., 22(2002), p. 947.10.1016/S0955-2219(01)00396-X ↗
13. N. Forouzanmehr, F. Karimzadeh, and M.H. Enayati, Synthesis and characterization of TiAl/α-Al2O3 nanocomposite by mechanical alloying, J. Alloys Compd., 478(2009), p. 257.10.1016/j.jallcom.2008.12.047 ↗
14. R.H. Fan, H.L. Lü, K.N. Sun, W.X. Wang, and X.B. Yi, Kinetics of thermite reaction in Al-Fe2O3 system, Thermochim. Acta, 440(2006), p. 129.10.1016/j.tca.2005.10.020 ↗
15. R.H. Fan, B. Liu, J.D. Zhang, J.Q. Bi, and Y.S. Yin, Kinetic evaluation of combustion synthesis 3TiO2 + 7Al → 3TiAl + 2Al2O3 using non-isothermal DSC method, Mater. Chem. Phys., 91(2005), p. 140.10.1016/j.matchemphys.2004.11.004 ↗
16. A.R. Kamali, I. Babaei Nejad, M.R. Aboutalebi, and H. Razavizadeh, Effect of ball milling on reaction between TiO2 and Al, Russ. J. Non Ferrous Met., 50(2009), No. 3, p. 246.10.3103/S1067821209030110 ↗
17. Z. Liu, S. Raynova, D. Zhang, and B. Gabbitas, Study on the self sustained reactions in an Al-TiO2 composite powder produced by high-energy mechanical milling, Mater. Sci. Eng. A, 449–451(2007), p. 1107.10.1016/j.msea.2006.03.135 ↗
18. M. Palm, L.C. Zhang, F. Stein, and G. Sauthoff, Phases and phase equilibria in the Al-rich part of the Al-Ti system above 900°C, Intermetallics, 10(2002), p. 523.10.1016/S0966-9795(02)00022-5 ↗
19. R. Taherzadeh Mousavian, S. Sharafi, and M.H. Shariat, Microwave-assisted combustion synthesis in a mechanically activated Al-TiO2-H3BO3 system, Int. J. Refract. Met. Hard Mater., 29(2011), p. 281.10.1016/j.ijrmhm.2010.12.002 ↗
20. R. Taherzadeh Mousavian, S. Sharafi, M.R. Roshan, and M.H. Shariat, Effect of mechanical activation of reagents’ mixture on the high-temperature synthesis of Al2O3-TiB2 composite powder, J. Therm. Anal. Calorim., 104(2011), No. 3, p. 1063.10.1007/s10973-010-1272-0 ↗