Authors
1 Materials and Energy Research Center (MERC)
2 Iranian Aircraft Industries
Abstract
Ti-Al-Al2O3 composite is produced from Al and TiO2 particles by a mechanochemical method. The starting powders were first activated by high-energy milling which reduced the grain sizes down to nanometric scale. Then, the milled powders were annealed at 600◦C for 5hr in order to decrease the activation energy for the formation of Al2O3 and Ti-Al binary compounds. Results indicated the formation of some TiAl and Ti3Al compounds. However, to complete this process, it was necessary to perform a subsequent heat treatment of the previously anneald samples at 1200, 1300 and 1400◦C.
Keywords
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