Direct synthesis of NiAl intermetallic matrix composite with TiC and Al2O3 reinforcements by mechanical alloying of NiO–Al–Ti–C powder mixture

NiAl intermetallic matrix nanocomposite with TiC and Al2O3 was directly fabricated by mechanical alloying of NiO, Al, graphite, and Ti as the starting powder mixture. The phase and morphological evaluations during mechanical alloying were characterized by X-ray diffraction and scanning electron microscopy equipped by energy-dispersive X-ray spectroscopy, respectively. The thermal behavior of the 40 h milled powder was obtained via differential...