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- Fabrication of Fe-TiB2 Composite Powder by High-Energy Milling and Subsequent Reaction Synthesis
- H.X. Khoa, N.Q. Tuan, Y.H. Lee, B.H. Lee, N.H. Viet, J.S. Kim
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Journal of Korean Powder Metallurgy Institute 2013;20(3):221-227
DOI: https://doi.org/10.4150/KPMI.2013.20.3.221
1School of Materials Science and Engineering, University of Ulsan
2School of Materials Science and Engineering, University of Ulsan
3School of Materials Science and Engineering, University of Ulsan
4School of Materials Science and Engineering, University of Ulsan
5School of Materials Science and Engineering, Hanoi University of Science and Technology
6School of Materials Science and Engineering, University of Ulsan
2School of Materials Science and Engineering, University of Ulsan
3School of Materials Science and Engineering, University of Ulsan
4School of Materials Science and Engineering, University of Ulsan
5School of Materials Science and Engineering, Hanoi University of Science and Technology
6School of Materials Science and Engineering, University of Ulsan
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Abstract
TiB_2-reinforced iron matrix composite (Fe-TiB_2) powder was in-situ fabricated from titanium hydride (TiH_2) and iron boride (FeB) powders by the mechanical activation and a subsequent reaction. Phase formation of the composite powder was identified by X-ray diffraction (XRD). The morphology and phase composition were observed and measured by field emission-scanning electron microscopy (FE-SEM) and energy-dispersive X-ray spectroscopy (EDS), respectively. The results showed that TiB_2 particles formed in nanoscale were uniformly distributed in Fe matrix. Fe_2B phase existed due to an incomplete reaction of Ti and FeB. Effect of milling process and synthesis temperature on the formation of composite were discussed.
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