A TEM study on TiB2–20%MoSi2 composite: Microstructure development and densification mechanism

We report the results of transmission electron microscopy (TEM) study, carried out on a hot-pressed TiB2–20 wt.%MoSi2 composite. One of the important microstructural observations includes the detection of crystalline TiSi2 at triple grain junctions. The densification mechanism is discussed, based on experimental observations and thermodynamic analysis.