A. Mosleh, M. Ehteshamzadeh, and R. Taherzadeh Mousavian, Fabrication of an r-Al2Ti intermetallic matrix composite reinforced with α-Al2O3 ceramic by discontinuous mechanical milling for thermite reaction, Int. J. Miner. Metall. Mater., 21(2014), No. 10, pp. 1037-1043. https://doi.org/10.1007/s12613-014-1006-6
Cite this article as:
A. Mosleh, M. Ehteshamzadeh, and R. Taherzadeh Mousavian, Fabrication of an r-Al2Ti intermetallic matrix composite reinforced with α-Al2O3 ceramic by discontinuous mechanical milling for thermite reaction, Int. J. Miner. Metall. Mater., 21(2014), No. 10, pp. 1037-1043. https://doi.org/10.1007/s12613-014-1006-6
A. Mosleh, M. Ehteshamzadeh, and R. Taherzadeh Mousavian, Fabrication of an r-Al2Ti intermetallic matrix composite reinforced with α-Al2O3 ceramic by discontinuous mechanical milling for thermite reaction, Int. J. Miner. Metall. Mater., 21(2014), No. 10, pp. 1037-1043. https://doi.org/10.1007/s12613-014-1006-6
Citation:
A. Mosleh, M. Ehteshamzadeh, and R. Taherzadeh Mousavian, Fabrication of an r-Al2Ti intermetallic matrix composite reinforced with α-Al2O3 ceramic by discontinuous mechanical milling for thermite reaction, Int. J. Miner. Metall. Mater., 21(2014), No. 10, pp. 1037-1043. https://doi.org/10.1007/s12613-014-1006-6
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.
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.
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