Microstructural characterization of Nd2O3 in in situ synthesized multiple-reinforced (TiBÂ +Â TiCÂ +Â Nd2O3)/Ti composites

In this work, the microstructures of Nd2O3 reinforcements in in situ synthesized (TiB + TiC + Nd2O3)/Ti composites were examined by back-scattered scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The interfacial bonding microstructure and orientation relationship between Nd2O3 and α-Ti was observed utilizing transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HREM). The orientation relationship of Nd2O3 and α-Ti can be described as: [110]Nd2O3//[1¯21¯3¯]Ti; (11¯1)Nd2O3//(11¯01¯)Ti; (001)Nd2O3//(21¯1¯0)Ti and [001]Nd2O3//[1¯101]Ti; (100)Nd2O3\\(2¯113¯)Ti.