Synthesis of Al/TiC–Al2O3 nanocomposite by mechanical alloying and subsequent heat treatment
Source abstract
Abstract
Abstract In this study, Al/TiC–Al 2 O 3 nanocomposite was synthesized via mechanical alloying and heat treatment. Phase development and structural changes were studied by X-ray diffraction technique and field-emission gun scanning electron microscopy. The results showed that the phase evolutions during mechanical alloying were strongly dependent on milling time until 20 h by formation of Al 3 Ti and Al 2 O 3 . After that, by increasing milling time, no new phases formed. Heat treatment of 60 h milled powder showed that no new phases (especially TiC) were found after annealing at 500 °C. But increasing temperature to 1000 °C caused the Al 3 Ti and TiO 2 peaks disappeared and TiC peaks emerged. These results confirmed that the formation of TiC is not feasible in an Al–TiO 2 –C system with excess Al by mechanical alloying.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Advanced materials and composites · Advanced ceramic materials synthesis
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