HRTEM study of the microstructure of TiC0.6/NiAl composite

Intermetallic NiAl bonded sub-stoichiometric titanium carbide based composite of TiC0.6/NiAl was fabricated by a two-step melt infiltration processing method, and its microstructure was characterized with scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM). Ordered Ni2AlTi precipitated in NiAl matrix and a new long period modulated structure as a transition layer appeared at the phase boundary.